Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Symfony's symfony/cache and symfony/symfony packages are affected in versions before 5.4.52, from 6.0.0 before 6.4.40, from 7.0.0 before 7.4.12, and from 8.0.0 before 8.0.12. In the non-versioning path of PdoAdapter's clear($prefix), the prefix is inserted directly into SQL without escaping, so an attacker who can control the prefix value could inject SQL and widen the rows deleted. Upgrade to 5.4.52, 6.4.40, 7.4.12, or 8.0.12, where clear() rejects prefixes containing characters outside a safe set and returns false with a logged warning.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 6.3 | Medium | 4.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0046, the 40th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 20 May 2026, 10:21 UTC Published by the maintainers as a GitHub repository advisory
- 31 Oct 2026, 14:02 UTC First seen by agentprime
- 31 Oct 2026, 14:02 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-6qh9-h6wf-jgqc
- OSV: GHSA-6qh9-h6wf-jgqc
- github.com/symfony/symfony/security/advisories/GHSA-6qh9-h6wf-jgqc
- github.com/symfony/symfony/commit/ec50b799d79ebe24561f29351c1efcb6da95c9b
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2026-45073.yaml
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45073.yaml
- github.com/symfony/symfony
- symfony.com/cve-2026-45073