Common Weakness Enumeration

CWE-295

Allowed

Improper Certificate Validation

Abstraction: Base · Status: Draft

The product does not validate, or incorrectly validates, a certificate.

2414 vulnerabilities reference this CWE, most recent first.

CVE-2026-119559 (GCVE-0-2026-119559)

Vulnerability from cvelistv5 – Published: 2026-10-30 11:31 – Updated: 2026-10-30 11:31
VLAI
Title
OpenLiteSpeed through 1.9.4 mTLS Bypass via HTTP/3 SNI and Host Mismatch
Summary
OpenLiteSpeed through 1.9.4 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to evade virtual host client certificate requirements over HTTP/3. Because QuicStream inherits a verifyContext() implementation that always returns true, attackers can present a non-mTLS host's SNI with a protected Host header to access protected content.
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7155 records in the last 180 days details
Impacted products
Vendor Product Version
litespeedtech openlitespeed Affected: 0 , ≤ 1.9.4 (semver)
    cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-12 00:00
Show details on NVD website

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CVE-2026-119190 (GCVE-0-2026-119190)

Vulnerability from cvelistv5 – Published: 2026-10-29 19:25 – Updated: 2026-10-29 20:25
VLAI
Title
Forge: X.509 basicConstraints bypass in verifyCertificateChain() via deprecated extension OIDs 2.5.29.10 and 2.5.29.13
Summary
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, node-forge parsed deprecated extension OIDs 2.5.29.10 and 2.5.29.13 as basicConstraints, and pki.verifyCertificateChain() used the first extension with that name. Exploitation requires a CA trusted by the application to issue a certificate carrying an attacker-supplied deprecated-OID extension, commonly because the CA copies extensions from a certificate signing request. By placing a permissive deprecated extension before the genuine 2.5.29.19 basicConstraints extension, the certificate holder could have the certificate accepted as a CA and issue certificates for arbitrary names, enabling server or client impersonation. If the issuing CA adds a keyUsage extension without keyCertSign, node-forge rejects the chain. This issue is fixed in version 1.4.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 20:24 UTC
CWE
  • CWE-295 - Improper Certificate Validation
  • CWE-436 - Interpretation Conflict
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8086 records in the last 180 days details
Impacted products
Vendor Product Version
digitalbazaar forge Affected: < 1.4.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-119189 (GCVE-0-2026-119189)

Vulnerability from cvelistv5 – Published: 2026-10-29 19:23 – Updated: 2026-10-29 19:23
VLAI
Title
Forge: X.509 pathLenConstraint not enforced by verifyCertificateChain() for CA certificates without keyUsage
Summary
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, node-forge enforced an X.509 CA certificate's basicConstraints.pathLenConstraint only when that certificate also carried a keyUsage extension. Exploitation requires a path-length-constrained CA without keyUsage that chains to a root trusted by the application, and an attacker who holds that CA's private key or obtains a subordinate CA certificate from it. The attacker could then construct a chain exceeding the declared path length that still passed pki.verifyCertificateChain(). Public web PKI CA certificates normally include keyUsage; private PKIs with CA certificates created without it are more likely to be affected. This issue is fixed in version 1.4.1.
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8086 records in the last 180 days details
Impacted products
Vendor Product Version
digitalbazaar forge Affected: < 1.4.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-119118 (GCVE-0-2026-119118)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:58 – Updated: 2026-10-29 20:12
VLAI
Title
Crawl4AI before 0.9.5 Improper Certificate Validation via Hard-coded Chromium Flags
Summary
Crawl4AI before 0.9.5 contains an improper certificate validation vulnerability that allows network attackers to intercept crawls because Chromium always launches with --ignore-certificate-errors. Man-in-the-middle or DNS-controlling attackers can serve forged content to the crawler and read cookies and headers sent, while hard-coded --no-sandbox also overrides CRAWL4AI_CHROMIUM_SANDBOX.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 20:11 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7155 records in the last 180 days details
References
Impacted products
Vendor Product Version
unclecode crawl4ai Affected: 0 , < 0.9.5 (semver)
Unaffected: 0.9.5 (semver)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
Show details on NVD website

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CVE-2026-118780 (GCVE-0-2026-118780)

Vulnerability from cvelistv5 – Published: 2026-10-29 18:47 – Updated: 2026-10-29 18:47
VLAI
Title
Forge: verifyCertificateChain() removes trusted CA certificates with the same subject from the CA store
Summary
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used pki.verifyCertificateChain(), pki.createCaStore(), duplicate subject names to process the relevant input or security decision. node-forge modified the CA store while trying certificates that shared a subject name during pki.verifyCertificateChain(). A failed chain verification could permanently remove trusted CA certificates from the store, causing later valid chains to fail and creating a persistent availability impact for applications that reused the store. This issue is fixed in version 1.4.1.
CWE
  • CWE-295 - Improper Certificate Validation
  • CWE-471 - Modification of Assumed-Immutable Data (MAID)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8086 records in the last 180 days details
Impacted products
Vendor Product Version
digitalbazaar forge Affected: < 1.4.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-118697 (GCVE-0-2026-118697)

Vulnerability from cvelistv5 – Published: 2026-10-30 17:31 – Updated: 2026-10-31 03:56
VLAI
Summary
In JetBrains Toolbox App before 3.9.1 and 3.8.2; IntelliJ IDEA before 2026.3 and 2026.2.4, the jetbrainsd daemon trusted compromised intermediate certificates
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 00:00 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
JetBrains CNA under the mitre root
CNA scorecard D 57/100 over 157 records in the last 180 days details
Impacted products
Vendor Product Version
JetBrains Toolbox App Affected: 3.9.0 , < 3.9.1 (semver)
Affected: 0 , < 3.8.2 (semver)
Create a notification for this product.
JetBrains IntelliJ IDEA Affected: 0 , < 2026.2.4 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-118682 (GCVE-0-2026-118682)

Vulnerability from cvelistv5 – Published: 2026-10-28 21:11 – Updated: 2026-10-28 21:11
VLAI
Title
ClashMi through 1.0.32.1801 Disabled TLS Certificate Validation Enables Update MITM
Summary
KaringX ClashMi through 1.0.32.1801 disables TLS certificate validation by default in the HttpUtils helper, allowing attackers to intercept HTTPS traffic by presenting any certificate. Attackers operating the user's proxy node can serve a forged update manifest omitting sha256 to deliver a malicious installer, achieving code execution when the update runs.
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7155 records in the last 180 days details
Impacted products
Vendor Product Version
KaringX clashmi Affected: 0 , ≤ 1.0.32.1801 (custom)
Create a notification for this product.
Date Public
2026-10-23 00:00
Show details on NVD website

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CVE-2026-118147 (GCVE-0-2026-118147)

Vulnerability from cvelistv5 – Published: 2026-10-31 18:13 – Updated: 2026-10-31 18:13
VLAI
Title
Visual Studio Spoofing Vulnerability
Summary
Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
microsoft CNA under the mitre root
CNA scorecard B 82/100 over 3974 records in the last 180 days details
References
Date Public
2026-10-30 14:00
Show details on NVD website

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CVE-2026-118040 (GCVE-0-2026-118040)

Vulnerability from cvelistv5 – Published: 2026-10-28 12:30 – Updated: 2026-10-28 12:30
VLAI
Title
Improper Signature and Certificate Validation in Telerik Document Processing Libraries RadPdfProcessing
Summary
In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, improper verification of cryptographic signatures and improper certificate validation in RadPdfProcessing digital signature validation allow an unauthenticated attacker to cause signature validation to report forged content as unmodified and its signing certificate as valid via a crafted signed PDF document.
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
  • CWE-295 - Improper Certificate Validation
Assigner
ProgressSoftware CNA under the mitre root
CNA scorecard B 78/100 over 160 records in the last 180 days details
References
Impacted products
Show details on NVD website

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CVE-2026-117681 (GCVE-0-2026-117681)

Vulnerability from cvelistv5 – Published: 2026-10-31 08:57 – Updated: 2026-10-31 08:57
VLAI
Title
Konflux-ci: ui proxy skips backend tls verification on non-openshift clusters, leaking a token that can impersonate anyone
Summary
A flaw was found in konflux-ci. This vulnerability allows privilege escalation when the user interface proxy automatically disables Transport Layer Security (TLS) certificate verification for connections to internal backend services in environments lacking a default service certificate authority. Because the proxy attaches a cluster-scoped authentication token with user impersonation rights to these requests, an adjacent network attacker capable of intercepting traffic can capture the credentials to gain full administrative control of the cluster.
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1085 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-117681 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2563233 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Affected: 0.2.2-rc.2 , < * (semver)
Date Public
2026-10-28 00:00
Show details on NVD website

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Mitigation
Architecture and Design Implementation

Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.

Mitigation
Implementation

If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

CAPEC-475: Signature Spoofing by Improper Validation

An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.