CVE-2026-48736
- Source
- https://cve.org/CVERecord?id=CVE-2026-48736
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48736.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-48736
- Aliases
- Downstream
- Related
- Published
- 2026-07-14T19:09:30.260Z
- Modified
- 2026-07-17T03:47:04.722055195Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N CVSS Calculator
- Summary
- Symfony: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient
- Details
-
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATE_SUBNETS omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowing attacker-supplied URLs to represent private IPv4 targets in forms that IpUtils::isPrivateIp() did not block. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.
- Database specific
{ "cwe_ids": [ "CWE-184", "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48736.json", "cna_assigner": "GitHub_M" }- References
-
- https://github.com/symfony/symfony/releases/tag/v5.4.53
- https://github.com/symfony/symfony/releases/tag/v6.4.41
- https://github.com/symfony/symfony/releases/tag/v7.4.13
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48736.json
- https://github.com/symfony/symfony/security/advisories/GHSA-38cx-cq6f-5755
- https://nvd.nist.gov/vuln/detail/CVE-2026-48736
- https://github.com/symfony/symfony/commit/82765368cf74177c36613575182f168a2eb765b2
- https://github.com/symfony/symfony/commit/85b831555be8ea1f43bf01078afe87bc4c92f65e
Affected packages
Git / github.com/symfony/security-http
Affected ranges
- Type
- GIT
- Repo
- https://github.com/symfony/security-http
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
{ "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "5.4.0" }, { "fixed": "5.4.43" }, { "introduced": "6.4.0" }, { "fixed": "6.4.41" }, { "introduced": "7.0.0" }, { "fixed": "7.4.13" }, { "introduced": "8.0.0" }, { "fixed": "8.0.13" } ], "source": "CPE_RANGE" }
- Type
- GIT
- Repo
- https://github.com/symfony/symfony
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedFixedFixedFixed
- Database specific
{ "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "5.4.0" }, { "fixed": "5.4.43" }, { "introduced": "6.4.0" }, { "fixed": "6.4.41" }, { "introduced": "7.0.0" }, { "fixed": "7.4.13" }, { "introduced": "8.0.0" }, { "fixed": "8.0.13" } ], "source": [ "CPE_RANGE", "REFERENCES" ] }
Affected versions
v5.*
v5.4.0
v5.4.1
v5.4.10
v5.4.11
v5.4.12
v5.4.13
v5.4.14
v5.4.15
v5.4.16
v5.4.17
v5.4.18
v5.4.19
v5.4.2
v5.4.20
v5.4.21
v5.4.22
v5.4.23
v5.4.24
v5.4.25
v5.4.26
v5.4.27
v5.4.28
v5.4.29
v5.4.3
v5.4.30
v5.4.31
v5.4.32
v5.4.33
v5.4.34
v5.4.35
v5.4.36
v5.4.37
v5.4.38
v5.4.39
v5.4.4
v5.4.40
v5.4.41
v5.4.42
v5.4.43
v5.4.44
v5.4.45
v5.4.46
v5.4.47
v5.4.48
v5.4.49
v5.4.5
v5.4.50
v5.4.51
v5.4.52
v5.4.6
v5.4.7
v5.4.8
v5.4.9
v6.*
v6.4.0
v6.4.0-RC2
v6.4.1
v6.4.10
v6.4.11
v6.4.12
v6.4.13
v6.4.14
v6.4.15
v6.4.16
v6.4.17
v6.4.18
v6.4.19
v6.4.2
v6.4.20
v6.4.21
v6.4.22
v6.4.23
v6.4.24
v6.4.25
v6.4.26
v6.4.27
v6.4.28
v6.4.29
v6.4.3
v6.4.30
v6.4.31
v6.4.32
v6.4.33
v6.4.34
v6.4.35
v6.4.36
v6.4.37
v6.4.38
v6.4.39
v6.4.4
v6.4.40
v6.4.5
v6.4.6
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
v7.4.12
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
v8.0.12
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.0.8
v8.0.9