CVE-2026-45755
- Source
- https://cve.org/CVERecord?id=CVE-2026-45755
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45755.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45755
- Aliases
- Downstream
- Published
- 2026-07-14T18:56:20Z
- Modified
- 2026-10-28T02:31:01Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Symfony: Mailtrap Mailer Webhook Parser Never Verifies the X-Mt-Signature HMAC — Unauthenticated Webhook Event Injection
- Details
-
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, MailtrapRequestParser::doParse() received the configured webhook secret but ignored the X-Mt-Signature HMAC header, allowing unauthenticated POST requests to inject forged Mailtrap delivery, bounce, open, click, or spam events. This issue is fixed in versions 7.4.12 and 8.0.12.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-306", "CWE-347" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45755.json" }- References
-
- 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-2026-45755.json
- https://github.com/symfony/symfony/security/advisories/GHSA-59f3-vp2f-mp9w
- https://nvd.nist.gov/vuln/detail/CVE-2026-45755
- https://github.com/symfony/symfony/commit/4e0467e4e182cf2e704a3d9e1bc1a6be65d52ab8
Affected packages
Git / github.com/symfony/security-http
Affected ranges
- Type
- GIT
- Repo
- https://github.com/symfony/security-http
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "7.2.0" }, { "fixed": "7.4.12" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "8.0.0" }, { "fixed": "8.0.12" } ], "source": "CPE_RANGE" } ] }
- Type
- GIT
- Repo
- https://github.com/symfony/symfony
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "7.2.0" }, { "fixed": "7.4.12" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "8.0.0" }, { "fixed": "8.0.12" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "4e0467e4e182cf2e704a3d9e1bc1a6be65d52ab8" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v7.4.12", "range": [ { "fixed": "275f5cbccbcc50205206f05e599c4f57009aadb8" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v8.0.12", "range": [ { "fixed": "06d3b2c9a8aeb5d8493738cc51e24f6a1215827c" } ], "source": "REFERENCES_TAG" } ] }