CVE-2026-45066
- Source
- https://cve.org/CVERecord?id=CVE-2026-45066
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45066.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45066
- Aliases
- Downstream
- Published
- 2026-07-14T17:53:49.836Z
- Modified
- 2026-08-07T11:50:47.465408237Z
- Severity
-
- 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
- Summary
- Symfony: HtmlSanitizer allowLinkHosts() / allowMediaHosts() Bypass via URL-Parser Differentials and <area> Misclassification
- Details
-
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, HtmlSanitizer URL sanitization can allow off-allowlist URLs through allowLinkHosts() or allowMediaHosts() because UrlSanitizer::parse() follows RFC 3986 while browsers follow WHATWG URL parsing, and because <area href> is checked against the media policy rather than the link policy. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
- Database specific
{ "cna_assigner": "GitHub_M", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45066.json", "cwe_ids": [ "CWE-184", "CWE-436" ] }- References
-
- https://github.com/symfony/symfony/releases/tag/v6.4.40
- https://github.com/symfony/symfony/releases/tag/v7.4.12
- https://github.com/symfony/symfony/releases/tag/v8.0.12
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45066.json
- https://github.com/symfony/symfony/security/advisories/GHSA-qc95-4862-92fh
- https://nvd.nist.gov/vuln/detail/CVE-2026-45066
- https://github.com/symfony/symfony/commit/d506b556d3d3906f3e8660ad82257ce87edbaac4
Affected packages
Git / github.com/symfony/security-http
Affected ranges
- Type
- GIT
- Repo
- https://github.com/symfony/security-http
- Events
- Database specific
{ "extracted_events": [ { "introduced": "6.1.0" }, { "fixed": "6.4.40" }, { "introduced": "7.0.0" }, { "fixed": "7.4.12" }, { "introduced": "8.0.0" }, { "fixed": "8.0.12" } ], "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "source": "CPE_RANGE" }
- Type
- GIT
- Repo
- https://github.com/symfony/symfony
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedFixed
- Database specific
{ "extracted_events": [ { "introduced": "6.1.0" }, { "fixed": "6.4.40" }, { "introduced": "7.0.0" }, { "fixed": "7.4.12" }, { "introduced": "8.0.0" }, { "fixed": "8.0.12" } ], "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "source": [ "CPE_RANGE", "REFERENCES" ] }
Affected versions
v6.*
v6.1.0
v6.1.0-RC1
v6.2.0
v6.2.0-BETA1
v6.2.0-BETA3
v6.2.0-RC1
v6.3.0-BETA1
v6.3.0-RC1
v6.4.0
v6.4.0-BETA1
v6.4.0-BETA3
v6.4.0-RC1
v6.4.0-RC2
v6.4.11
v6.4.12
v6.4.13
v6.4.14
v6.4.15
v6.4.18
v6.4.19
v6.4.21
v6.4.22
v6.4.23
v6.4.24
v6.4.25
v6.4.26
v6.4.3
v6.4.30
v6.4.31
v6.4.34
v6.4.39
v6.4.4
v6.4.7
v6.4.8
v6.4.9
v7.*
v7.0.0
v7.0.0-RC2
v7.0.1
v7.1.0
v7.1.0-BETA1
v7.1.0-RC1
v7.2.0
v7.2.0-BETA1
v7.2.0-BETA2
v7.2.0-RC1
v7.2.1
v7.3.0
v7.3.0-BETA1
v7.3.0-BETA2
v7.3.0-RC1
v7.4.0
v7.4.0-BETA1
v7.4.0-RC1
v7.4.0-RC2
v7.4.1
v7.4.11
v7.4.3
v7.4.4
v7.4.6
v7.4.8
v7.4.9
v8.*
v8.0.0
v8.0.1
v8.0.10
v8.0.11
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.0.8
v8.0.9