Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| symfony | symfony | affected |
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| symfony | mailomat-mailer | affected |
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No vendor fix or workaround currently provided.
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Tracking
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| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-rrj9-5q2j-4gvr | Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade |
Tue, 14 Jul 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.13 and 8.0.13, MailomatRequestParser::validateSignature() parsed X-MOM-Webhook-Signature as algo=signature and passed the request-selected algorithm to hash_hmac(), allowing a signature algorithm downgrade instead of enforcing Mailomat's documented SHA-256 webhook signature. This issue is fixed in versions 7.4.13 and 8.0.13. | |
| Title | Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade | |
| Weaknesses | CWE-347 CWE-757 |
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| Metrics |
cvssV4_0
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-14T19:16:24.327Z
Reserved: 2026-05-22T19:10:35.747Z
Link: CVE-2026-48747
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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