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22 vulnerabilities by Traefik

CVE-2025-54386 (GCVE-0-2025-54386)

Vulnerability from cvelistv5 – Published: 2025-08-01 23:32 – Updated: 2025-08-04 15:28
VLAI?
Summary
Traefik is an HTTP reverse proxy and load balancer. In versions 2.11.27 and below, 3.0.0 through 3.4.4 and 3.5.0-rc1, a path traversal vulnerability was discovered in WASM Traefik’s plugin installation mechanism. By supplying a maliciously crafted ZIP archive containing file paths with ../ sequences, an attacker can overwrite arbitrary files on the system outside of the intended plugin directory. This can lead to remote code execution (RCE), privilege escalation, persistence, or denial of service. This is fixed in versions 2.11.28, 3.4.5 and 3.5.0.
Severity ?
7.3 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-30 - Path Traversal: 'dir..filename'
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: <= 2.11.27, < 2.11.28
Affected: <= 3.0.0, < 3.4.5
Affected: >= 3.5.0-rc1, < 3.5.0-rc2
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CVE-2025-47952 (GCVE-0-2025-47952)

Vulnerability from cvelistv5 – Published: 2025-05-30 03:37 – Updated: 2025-05-30 12:44
VLAI?
Summary
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. Prior to versions 2.11.25 and 3.4.1, there is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a URL encoded string in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.25 and 3.4.1.
Severity ?
2.9 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 3.4.1
Affected: < 2.11.25
Create a notification for this product.
Show details on NVD website
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CVE-2025-32431 (GCVE-0-2025-32431)

Vulnerability from cvelistv5 – Published: 2025-04-21 15:34 – Updated: 2025-04-21 15:55
VLAI?
Summary
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a /../ in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path.
Severity ?
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.11.24
Affected: < 3.3.6
Affected: >= 3.4.0-rc1, < 3.4.0-rc2
Create a notification for this product.
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CVE-2024-52003 (GCVE-0-2024-52003)

Vulnerability from cvelistv5 – Published: 2024-11-29 18:15 – Updated: 2024-12-02 11:19
VLAI?
Summary
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. There is a vulnerability in Traefik that allows the client to provide the X-Forwarded-Prefix header from an untrusted source. This issue has been addressed in versions 2.11.14 and 3.2.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity ?
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.11.14
Affected: >= 3.0.0, < 3.2.1
Create a notification for this product.
Show details on NVD website
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CVE-2024-45410 (GCVE-0-2024-45410)

Vulnerability from cvelistv5 – Published: 2024-09-19 22:51 – Updated: 2024-09-20 14:59
VLAI?
Summary
Traefik is a golang, Cloud Native Application Proxy. When a HTTP request is processed by Traefik, certain HTTP headers such as X-Forwarded-Host or X-Forwarded-Port are added by Traefik before the request is routed to the application. For a HTTP client, it should not be possible to remove or modify these headers. Since the application trusts the value of these headers, security implications might arise, if they can be modified. For HTTP/1.1, however, it was found that some of theses custom headers can indeed be removed and in certain cases manipulated. The attack relies on the HTTP/1.1 behavior, that headers can be defined as hop-by-hop via the HTTP Connection header. This issue has been addressed in release versions 2.11.9 and 3.1.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
  • CWE-348 - Use of Less Trusted Source
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.11.9
Affected: >= 3.0.0, < 3.1.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-39321 (GCVE-0-2024-39321)

Vulnerability from cvelistv5 – Published: 2024-07-05 17:32 – Updated: 2024-08-02 04:19
VLAI?
Summary
Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch for this issue. No known workarounds are available.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.11.6
Affected: >= 3.0.0-beta3, < 3.0.4
Affected: >= 3.1.0-rc1, < 3.1.0-rc3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-28869 (GCVE-0-2024-28869)

Vulnerability from cvelistv5 – Published: 2024-04-12 21:08 – Updated: 2024-08-02 00:56
VLAI?
Summary
Traefik is an HTTP reverse proxy and load balancer. In affected versions sending a GET request to any Traefik endpoint with the "Content-length" request header results in an indefinite hang with the default configuration. This vulnerability can be exploited by attackers to induce a denial of service. This vulnerability has been addressed in version 2.11.2 and 3.0.0-rc5. Users are advised to upgrade. For affected versions, this vulnerability can be mitigated by configuring the readTimeout option.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.11.2
Affected: >= 3.0.0-rc1, < 3.0.0-rc5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-47633 (GCVE-0-2023-47633)

Vulnerability from cvelistv5 – Published: 2023-12-04 20:36 – Updated: 2024-11-27 16:03
VLAI?
Summary
Traefik is an open source HTTP reverse proxy and load balancer. The traefik docker container uses 100% CPU when it serves as its own backend, which is an automatically generated route resulting from the Docker integration in the default configuration. This issue has been addressed in versions 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.10.6
Affected: >= 3.0.0-beta1, < 3.0.0-beta5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-47106 (GCVE-0-2023-47106)

Vulnerability from cvelistv5 – Published: 2023-12-04 20:26 – Updated: 2024-08-02 21:01
VLAI?
Summary
Traefik is an open source HTTP reverse proxy and load balancer. When a request is sent to Traefik with a URL fragment, Traefik automatically URL encodes and forwards the fragment to the backend server. This violates RFC 7230 because in the origin-form the URL should only contain the absolute path and the query. When this is combined with another frontend proxy like Nginx, it can be used to bypass frontend proxy URI-based access control restrictions. This vulnerability has been addressed in versions 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity ?
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.10.6
Affected: >= 3.0.0-beta1, < 3.0.0-beta5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-47124 (GCVE-0-2023-47124)

Vulnerability from cvelistv5 – Published: 2023-12-04 20:20 – Updated: 2024-12-18 14:12
VLAI?
Summary
Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.10.6
Affected: >= 3.0.0-beta1, < 3.0.0-beta5
Create a notification for this product.
Show details on NVD website
To clipboard 

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      "title": "Denial of service whith ACME HTTPChallenge in Traefik"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-47124",
    "datePublished": "2023-12-04T20:20:30.727Z",
    "dateReserved": "2023-10-30T19:57:51.676Z",
    "dateUpdated": "2024-12-18T14:12:58.629Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2023-44487 (GCVE-0-2023-44487)

Vulnerability from cvelistv5 – Published: 2023-10-10 00:00 – Updated: 2025-11-04 21:08
VLAI?
Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
https://github.com/dotnet/core/blob/e4613450ea0da…
https://blog.cloudflare.com/technical-breakdown-h…
https://aws.amazon.com/security/security-bulletin…
https://cloud.google.com/blog/products/identity-s…
https://www.nginx.com/blog/http-2-rapid-reset-att…
https://cloud.google.com/blog/products/identity-s…
https://news.ycombinator.com/item?id=37831062
https://blog.cloudflare.com/zero-day-rapid-reset-…
https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack
https://github.com/envoyproxy/envoy/pull/30055
https://github.com/haproxy/haproxy/issues/2312
https://github.com/eclipse/jetty.project/issues/10679
https://forums.swift.org/t/swift-nio-http2-securi…
https://github.com/nghttp2/nghttp2/pull/1961
https://github.com/netty/netty/commit/58f75f665aa…
https://github.com/alibaba/tengine/issues/1872
https://github.com/apache/tomcat/tree/main/java/o…
https://news.ycombinator.com/item?id=37830987
https://news.ycombinator.com/item?id=37830998
https://github.com/caddyserver/caddy/issues/5877
https://www.bleepingcomputer.com/news/security/ne…
https://github.com/bcdannyboy/CVE-2023-44487
https://github.com/grpc/grpc-go/pull/6703
https://github.com/icing/mod_h2/blob/0a864782af0a…
https://github.com/nghttp2/nghttp2/releases/tag/v1.57.0
https://mailman.nginx.org/pipermail/nginx-devel/2…
https://my.f5.com/manage/s/article/K000137106
https://msrc.microsoft.com/blog/2023/10/microsoft…
https://bugzilla.proxmox.com/show_bug.cgi?id=4988
https://cgit.freebsd.org/ports/commit/?id=c64c329…
http://www.openwall.com/lists/oss-security/2023/10/10/7 mailing-list
http://www.openwall.com/lists/oss-security/2023/10/10/6 mailing-list
https://seanmonstar.com/post/730794151136935936/h…
https://github.com/microsoft/CBL-Mariner/pull/6381
https://groups.google.com/g/golang-announce/c/iNN…
https://github.com/facebook/proxygen/pull/466
https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a…
https://github.com/micrictor/http2-rst-stream
https://edg.io/lp/blog/resets-leaks-ddos-and-the-…
https://openssf.org/blog/2023/10/10/http-2-rapid-…
https://github.com/h2o/h2o/security/advisories/GH…
https://github.com/h2o/h2o/pull/3291
https://github.com/nodejs/node/pull/50121
https://github.com/dotnet/announcements/issues/277
https://github.com/golang/go/issues/63417
https://github.com/advisories/GHSA-vx74-f528-fxqg
https://github.com/apache/trafficserver/pull/10564
https://msrc.microsoft.com/update-guide/vulnerabi…
https://tomcat.apache.org/security-10.html#Fixed_…
https://lists.apache.org/thread/5py8h42mxfsn8l1wy…
https://www.openwall.com/lists/oss-security/2023/…
https://www.haproxy.com/blog/haproxy-is-not-affec…
https://github.com/opensearch-project/data-preppe…
https://github.com/kubernetes/kubernetes/pull/121120
https://github.com/oqtane/oqtane.framework/discus…
https://github.com/advisories/GHSA-xpw8-rcwv-8f8p
https://netty.io/news/2023/10/10/4-1-100-Final.html
https://www.cisa.gov/news-events/alerts/2023/10/1…
https://www.theregister.com/2023/10/10/http2_rapi…
https://blog.qualys.com/vulnerabilities-threat-re…
https://news.ycombinator.com/item?id=37837043
https://github.com/kazu-yamamoto/http2/issues/93
https://martinthomson.github.io/h2-stream-limits/…
https://github.com/kazu-yamamoto/http2/commit/f61…
https://github.com/apache/httpd/blob/afcdbeebbff4…
https://www.debian.org/security/2023/dsa-5522 vendor-advisory
https://www.debian.org/security/2023/dsa-5521 vendor-advisory
https://access.redhat.com/security/cve/cve-2023-44487
https://github.com/ninenines/cowboy/issues/1615
https://github.com/varnishcache/varnish-cache/iss…
https://github.com/tempesta-tech/tempesta/issues/1986
https://blog.vespa.ai/cve-2023-44487/
https://github.com/etcd-io/etcd/issues/16740
https://www.darkreading.com/cloud/internet-wide-z…
https://istio.io/latest/news/security/istio-secur…
https://github.com/junkurihara/rust-rpxy/issues/97
https://bugzilla.suse.com/show_bug.cgi?id=1216123
https://bugzilla.redhat.com/show_bug.cgi?id=2242803
https://ubuntu.com/security/CVE-2023-44487
https://community.traefik.io/t/is-traefik-vulnera…
https://github.com/advisories/GHSA-qppj-fm5r-hxr3
https://github.com/apache/httpd-site/pull/10
https://github.com/projectcontour/contour/pull/5826
https://github.com/linkerd/website/pull/1695/comm…
https://github.com/line/armeria/pull/5232
https://blog.litespeedtech.com/2023/10/11/rapid-r…
https://security.paloaltonetworks.com/CVE-2023-44487
https://github.com/akka/akka-http/issues/4323
https://github.com/openresty/openresty/issues/930
https://github.com/apache/apisix/issues/10320
https://github.com/Azure/AKS/issues/3947
https://github.com/Kong/kong/discussions/11741
https://github.com/arkrwn/PoC/tree/main/CVE-2023-44487
https://www.netlify.com/blog/netlify-successfully…
https://github.com/caddyserver/caddy/releases/tag…
https://lists.debian.org/debian-lts-announce/2023… mailing-list
http://www.openwall.com/lists/oss-security/2023/10/13/4 mailing-list
http://www.openwall.com/lists/oss-security/2023/10/13/9 mailing-list
https://arstechnica.com/security/2023/10/how-ddos…
https://lists.w3.org/Archives/Public/ietf-http-wg…
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/
https://lists.debian.org/debian-lts-announce/2023… mailing-list
https://security.netapp.com/advisory/ntap-2023101…
https://lists.debian.org/debian-lts-announce/2023… mailing-list
http://www.openwall.com/lists/oss-security/2023/10/18/4 mailing-list
http://www.openwall.com/lists/oss-security/2023/10/18/8 mailing-list
http://www.openwall.com/lists/oss-security/2023/10/19/6 mailing-list
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
http://www.openwall.com/lists/oss-security/2023/10/20/8 mailing-list
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.debian.org/debian-lts-announce/2023… mailing-list
https://www.debian.org/security/2023/dsa-5540 vendor-advisory
https://lists.debian.org/debian-lts-announce/2023… mailing-list
https://discuss.hashicorp.com/t/hcsec-2023-32-vau…
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.debian.org/debian-lts-announce/2023… mailing-list
https://www.debian.org/security/2023/dsa-5549 vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://www.debian.org/security/2023/dsa-5558 vendor-advisory
https://lists.debian.org/debian-lts-announce/2023… mailing-list
https://security.gentoo.org/glsa/202311-09 vendor-advisory
https://www.debian.org/security/2023/dsa-5570 vendor-advisory
https://security.netapp.com/advisory/ntap-2024042…
https://security.netapp.com/advisory/ntap-2024062…
https://security.netapp.com/advisory/ntap-2024062…
https://github.com/grpc/grpc/releases/tag/v1.59.2
https://sec.cloudapps.cisco.com/security/center/c…
Show details on NVD website
To clipboard 

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          "url": "https://github.com/haproxy/haproxy/issues/2312"
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          "url": "https://github.com/eclipse/jetty.project/issues/10679"
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          "url": "https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764"
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          "url": "https://github.com/nghttp2/nghttp2/pull/1961"
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          "url": "https://github.com/alibaba/tengine/issues/1872"
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        {
          "url": "https://github.com/apache/tomcat/tree/main/java/org/apache/coyote/http2"
        },
        {
          "url": "https://news.ycombinator.com/item?id=37830987"
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        {
          "url": "https://news.ycombinator.com/item?id=37830998"
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        {
          "url": "https://github.com/caddyserver/caddy/issues/5877"
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        {
          "url": "https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/"
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        {
          "url": "https://github.com/bcdannyboy/CVE-2023-44487"
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          "url": "https://github.com/grpc/grpc-go/pull/6703"
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          "url": "https://my.f5.com/manage/s/article/K000137106"
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          "url": "https://bugzilla.proxmox.com/show_bug.cgi?id=4988"
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        {
          "name": "[oss-security] 20231010 Re: CVE-2023-44487: HTTP/2 Rapid Reset attack against many implementations",
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          "url": "http://www.openwall.com/lists/oss-security/2023/10/10/7"
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        {
          "name": "[oss-security] 20231010 CVE-2023-44487: HTTP/2 Rapid Reset attack against many implementations",
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          "url": "http://www.openwall.com/lists/oss-security/2023/10/10/6"
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        {
          "url": "https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected"
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          "url": "https://github.com/microsoft/CBL-Mariner/pull/6381"
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        {
          "url": "https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo"
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CVE-2023-29013 (GCVE-0-2023-29013)

Vulnerability from cvelistv5 – Published: 2023-04-14 18:15 – Updated: 2025-02-13 16:48
VLAI?
Summary
Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP header parsing could allocate substantially more memory than required to hold the parsed headers. This behavior could be exploited to cause a denial of service. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.9.10
Affected: = 2.10.0-rc1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-46153 (GCVE-0-2022-46153)

Vulnerability from cvelistv5 – Published: 2022-12-08 21:46 – Updated: 2025-04-23 16:30
VLAI?
Summary
Traefik is an open source HTTP reverse proxy and load balancer. In affected versions there is a potential vulnerability in Traefik managing TLS connections. A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption. For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates. Users are advised to upgrade to version 2.9.6. Users unable to upgrade should check their logs to detect the error messages and fix your TLS options.
Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.9.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-23469 (GCVE-0-2022-23469)

Vulnerability from cvelistv5 – Published: 2022-12-08 21:33 – Updated: 2025-04-22 15:58
VLAI?
Summary
Traefik is an open source HTTP reverse proxy and load balancer. Versions prior to 2.9.6 are subject to a potential vulnerability in Traefik displaying the Authorization header in its debug logs. In certain cases, if the log level is set to DEBUG, credentials provided using the Authorization header are displayed in the debug logs. Attackers must have access to a users logging system in order for credentials to be stolen. This issue has been addressed in version 2.9.6. Users are advised to upgrade. Users unable to upgrade may set the log level to `INFO`, `WARN`, or `ERROR`.
Severity ?
3.5 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.9.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-39271 (GCVE-0-2022-39271)

Vulnerability from cvelistv5 – Published: 2022-10-11 00:00 – Updated: 2025-04-23 16:51
VLAI?
Summary
Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. There is a potential vulnerability in Traefik managing HTTP/2 connections. A closing HTTP/2 server connection could hang forever because of a subsequent fatal error. This failure mode could be exploited to cause a denial of service. There has been a patch released in versions 2.8.8 and 2.9.0-rc5. There are currently no known workarounds.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.8.8
Affected: >= 2.9.0-rc1, < 2.9.0-rc5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-23632 (GCVE-0-2022-23632)

Vulnerability from cvelistv5 – Published: 2022-02-17 14:55 – Updated: 2025-04-23 19:02
VLAI?
Summary
Traefik is an HTTP reverse proxy and load balancer. Prior to version 2.6.1, Traefik skips the router transport layer security (TLS) configuration when the host header is a fully qualified domain name (FQDN). For a request, the TLS configuration choice can be different than the router choice, which implies the use of a wrong TLS configuration. When sending a request using FQDN handled by a router configured with a dedicated TLS configuration, the TLS configuration falls back to the default configuration that might not correspond to the configured one. If the CNAME flattening is enabled, the selected TLS configuration is the SNI one and the routing uses the CNAME value, so this can skip the expected TLS configuration. Version 2.6.1 contains a patch for this issue. As a workaround, one may add the FDQN to the host rule. However, there is no workaround if the CNAME flattening is enabled.
Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.6.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-32813 (GCVE-0-2021-32813)

Vulnerability from cvelistv5 – Published: 2021-08-03 22:50 – Updated: 2024-08-03 23:33
VLAI?
Summary
Traefik is an HTTP reverse proxy and load balancer. Prior to version 2.4.13, there exists a potential header vulnerability in Traefik's handling of the Connection header. Active exploitation of this issue is unlikely, as it requires that a removed header would lead to a privilege escalation, however, the Traefik team has addressed this issue to prevent any potential abuse. If one has a chain of Traefik middlewares, and one of them sets a request header, then sending a request with a certain Connection header will cause it to be removed before the request is sent. In this case, the backend does not see the request header. A patch is available in version 2.4.13. There are no known workarounds aside from upgrading.
Severity ?
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-913 - Improper Control of Dynamically-Managed Code Resources
Assigner
References
Impacted products
Vendor Product Version
traefik traefik Affected: < 2.4.13
Affected: <= 1.7.30
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-15129 (GCVE-0-2020-15129)

Vulnerability from cvelistv5 – Published: 2020-07-30 15:20 – Updated: 2024-08-04 13:08
VLAI?
Summary
In Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3, there exists a potential open redirect vulnerability in Traefik's handling of the "X-Forwarded-Prefix" header. The Traefik API dashboard component doesn't validate that the value of the header "X-Forwarded-Prefix" is a site relative path and will redirect to any header provided URI. Successful exploitation of an open redirect can be used to entice victims to disclose sensitive information. Active Exploitation of this issue is unlikely as it would require active header injection, however the Traefik team addressed this issue nonetheless to prevent abuse in e.g. cache poisoning scenarios.
Severity ?
6.1 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
containous traefik Affected: < 1.7.26
Affected: >= 2.0.0, < 2.2.8
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2019-20894 (GCVE-0-2019-20894)

Vulnerability from cvelistv5 – Published: 2020-07-02 15:30 – Updated: 2024-08-05 02:53
VLAI?
Summary
Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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CVE-2020-9321 (GCVE-0-2020-9321)

Vulnerability from cvelistv5 – Published: 2020-03-16 18:14 – Updated: 2024-08-04 10:26
VLAI?
Summary
configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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CVE-2019-12452 (GCVE-0-2019-12452)

Vulnerability from cvelistv5 – Published: 2019-05-29 18:43 – Updated: 2024-08-04 23:17
VLAI?
Summary
types/types.go in Containous Traefik 1.7.x through 1.7.11, when the --api flag is used and the API is publicly reachable and exposed without sufficient access control (which is contrary to the API documentation), allows remote authenticated users to discover password hashes by reading the Basic HTTP Authentication or Digest HTTP Authentication section, or discover a key by reading the ClientTLS section. These can be found in the JSON response to a /api request.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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CVE-2018-15598 (GCVE-0-2018-15598)

Vulnerability from cvelistv5 – Published: 2018-08-21 01:00 – Updated: 2024-08-05 10:01
VLAI?
Summary
Containous Traefik 1.6.x before 1.6.6, when --api is used, exposes the configuration and secret if authentication is missing and the API's port is publicly reachable.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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