Facts
- Severity
- High · CVSS score 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Affected versions (symfony/yaml)
- <5.4.56As entered by the maintainer. Not reviewed.
- Fixed in (symfony/yaml)
- 5.4.56
- Affected versions (symfony/yaml)
- >=6.0.0, <6.4.50As entered by the maintainer. Not reviewed.
- Fixed in (symfony/yaml)
- 6.4.50
- Affected versions (symfony/yaml)
- >=7.0.0, <7.4.23As entered by the maintainer. Not reviewed.
- Fixed in (symfony/yaml)
- 7.4.23
- Affected versions (symfony/yaml)
- >=8.0.0, <8.1.11As entered by the maintainer. Not reviewed.
- Fixed in (symfony/yaml)
- 8.1.11
- Affected versions (symfony/symfony)
- <5.4.56As entered by the maintainer. Not reviewed.
- Fixed in (symfony/symfony)
- 5.4.56
- Affected versions (symfony/symfony)
- >=6.0.0, <6.4.50As entered by the maintainer. Not reviewed.
- Fixed in (symfony/symfony)
- 6.4.50
- Affected versions (symfony/symfony)
- >=7.0.0, <7.4.23As entered by the maintainer. Not reviewed.
- Fixed in (symfony/symfony)
- 7.4.23
- Affected versions (symfony/symfony)
- >=8.0.0, <8.1.11As entered by the maintainer. Not reviewed.
- Fixed in (symfony/symfony)
- 8.1.11
- CVE
- CVE-2026-123792 · published
- GitHub Advisory Database
- Not reviewed
- OSV.dev
- Not present
- Other CVEs pointing here
- None found in the CVE List
If you use symfony/yaml <5.4.56
Upgrade to 5.4.56 or later. Dependabot, npm audit and OSV-Scanner won’t flag this yet.
Timeline
2026-11-04 11:43 UTC
Published by the maintainers
Cites CVE-2026-123792
2026-11-07 10:14 UTC
Change recorded
new CVE from another CNA: CVE-2026-123792
2026-11-07 13:24 UTC
Change recorded
cites CVE-2026-123792 (was none)
2026-11-04 14:43 UTC
First seen by Limbowatch
not reviewed · not in OSV
Waiting
Reviewed by GitHub
Waiting
In OSV; scanners can see it
Machine-readable record: feed/GHSA-hwfg-qwvh-2wfx.json