Search criteria
11 vulnerabilities by varnish-software
CVE-2025-47905 (GCVE-0-2025-47905)
Vulnerability from cvelistv5 – Published: 2025-05-13 00:00 – Updated: 2025-05-29 09:03
VLAI?
Summary
Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries.
Severity ?
5.4 (Medium)
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| varnish-software | Varnish Cache |
Affected:
0 , < 6.0.14 LTS
(custom)
Affected: 7.0.0 , < 7.6.3 (custom) Affected: 7.7.0 , < 7.7.1 (custom) |
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CVE-2025-30346 (GCVE-0-2025-30346)
Vulnerability from cvelistv5 – Published: 2025-03-21 00:00 – Updated: 2025-04-03 13:05
VLAI?
Summary
Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests.
Severity ?
5.4 (Medium)
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| varnish-software | Varnish Cache |
Affected:
7.5.0 , < 7.6.2
(semver)
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CVE-2025-30347 (GCVE-0-2025-30347)
Vulnerability from cvelistv5 – Published: 2025-03-21 00:00 – Updated: 2025-03-21 15:52
VLAI?
Summary
Varnish Enterprise before 6.0.13r13 allows remote attackers to obtain sensitive information via an out-of-bounds read for range requests on ephemeral MSE4 stevedore objects.
Severity ?
4 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| varnish-software | Varnish Enterprise |
Affected:
6 , < 6.0.13r13
(custom)
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CVE-2023-41104 (GCVE-0-2023-41104)
Vulnerability from cvelistv5 – Published: 2023-08-23 00:00 – Updated: 2024-10-03 14:09
VLAI?
Summary
libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both authentication bypass and information disclosure; however, the exact attack surface will depend on the particular VCL (Varnish Configuration Language) configuration in use.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2022-45060 (GCVE-0-2022-45060)
Vulnerability from cvelistv5 – Published: 2022-11-09 00:00 – Updated: 2025-05-01 14:28
VLAI?
Summary
An HTTP Request Forgery issue was discovered in Varnish Cache 5.x and 6.x before 6.0.11, 7.x before 7.1.2, and 7.2.x before 7.2.1. An attacker may introduce characters through HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This could, in turn, be used to exploit vulnerabilities in a server behind the Varnish server. Note: the 6.0.x LTS series (before 6.0.11) is affected.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
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CVE-2022-23959 (GCVE-0-2022-23959)
Vulnerability from cvelistv5 – Published: 2022-01-26 00:38 – Updated: 2024-08-03 03:59
VLAI?
Summary
In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2021-36740 (GCVE-0-2021-36740)
Vulnerability from cvelistv5 – Published: 2021-07-14 16:07 – Updated: 2024-08-04 01:01
VLAI?
Summary
Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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CVE-2019-20637 (GCVE-0-2019-20637)
Vulnerability from cvelistv5 – Published: 2020-04-08 23:01 – Updated: 2024-08-05 02:46
VLAI?
Summary
An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or VCL-related temporary headers.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2020-11653 (GCVE-0-2020-11653)
Vulnerability from cvelistv5 – Published: 2020-04-08 00:00 – Updated: 2024-08-04 11:35
VLAI?
Summary
An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |
|---|---|---|
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CVE-2019-15892 (GCVE-0-2019-15892)
Vulnerability from cvelistv5 – Published: 2019-09-03 20:56 – Updated: 2024-08-05 01:03
VLAI?
Summary
An issue was discovered in Varnish Cache before 6.0.4 LTS, and 6.1.x and 6.2.x before 6.2.1. An HTTP/1 parsing failure allows a remote attacker to trigger an assert by sending crafted HTTP/1 requests. The assert will cause an automatic restart with a clean cache, which makes it a Denial of Service attack.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2017-12425 (GCVE-0-2017-12425)
Vulnerability from cvelistv5 – Published: 2017-08-04 09:00 – Updated: 2024-08-05 18:36
VLAI?
Summary
An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd source code means that particular invalid requests from the client can trigger an assert, related to an Integer Overflow. This causes the varnishd worker process to abort and restart, losing the cached contents in the process. An attacker can therefore crash the varnishd worker process on demand and effectively keep it from serving content - a Denial-of-Service attack. The specific source-code filename containing the incorrect statement varies across releases.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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