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CVE-2026-118513: CVE-2026-118513: X509Authenticator and X509AuthenticationListener Read Escaped RFC 2253 Commas and Bare Slashes Inside a DN Value as RDN Boundaries: Incomplete Fix for CVE-2026-45063

unknown Affects symfony/security-http, symfony/symfony. Feed 2026.11.08.2, updated 2026-11-08; CVE published 2026.

CVE-2026-118513: X509Authenticator and X509AuthenticationListener Read Escaped RFC 2253 Commas and Bare Slashes Inside a DN Value as RDN Boundaries: Incomplete Fix for CVE-2026-45063

Package
symfony/security-http Composer
Affected versions
>=2.0.0 and <3.0.0 or >=3.0.0 and <4.0.0 or >=4.0.0 and <5.0.0 or >=5.0.0 and <5.1.0 or >=5.1.0 and <5.2.0 or >=5.2.0 and <5.3.0 or >=5.3.0 and <5.4.0 or >=5.4.0 and <5.4.56 or >=6.0.0 and <6.1.0 or >=6.1.0 and <6.2.0 or >=6.2.0 and <6.3.0 or >=6.3.0 and <6.4.0 or >=6.4.0 and <6.4.50 or >=7.0.0 and <7.1.0 or >=7.1.0 and <7.2.0 or >=7.2.0 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.23 or >=8.0.0 and <8.1.0 or >=8.1.0 and <8.1.11
Fixed in
5.4.56, 6.4.50, 7.4.23, 8.1.11
Severity
unknown
Exploitation
not on CISA KEV · EPSS 0% (19.4th percentile)
Source
friendsofphp

References

CVE-2026-118513: X509Authenticator and X509AuthenticationListener Read Escaped RFC 2253 Commas and Bare Slashes Inside a DN Value as RDN Boundaries: Incomplete Fix for CVE-2026-45063

Package
symfony/symfony Composer
Affected versions
>=2.0.0 and <3.0.0 or >=3.0.0 and <4.0.0 or >=4.0.0 and <5.0.0 or >=5.0.0 and <5.1.0 or >=5.1.0 and <5.2.0 or >=5.2.0 and <5.3.0 or >=5.3.0 and <5.4.0 or >=5.4.0 and <5.4.56 or >=6.0.0 and <6.1.0 or >=6.1.0 and <6.2.0 or >=6.2.0 and <6.3.0 or >=6.3.0 and <6.4.0 or >=6.4.0 and <6.4.50 or >=7.0.0 and <7.1.0 or >=7.1.0 and <7.2.0 or >=7.2.0 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.23 or >=8.0.0 and <8.1.0 or >=8.1.0 and <8.1.11
Fixed in
5.4.56, 6.4.50, 7.4.23, 8.1.11
Severity
unknown
Exploitation
not on CISA KEV · EPSS 0% (19.4th percentile)
Source
friendsofphp

References

NVD recordsymfony/security-http advisoriessymfony/symfony advisories

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