CVE-2026-42181Published
Lemmy: SSRF and internal image disclosure in post link metadata via unvalidated og:image
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-42181 · Microsoft / collected KEV context
cve-program · CVE-2026-42181
- https://github.com/LemmyNet/lemmy/security/advisories/GHSA-h6hf-9846-xwrq
- https://github.com/LemmyNet/lemmy/releases/tag/0.19.18
euvd · EUVD-2026-28820
- https://github.com/LemmyNet/lemmy/security/advisories/GHSA-h6hf-9846-xwrq
- https://github.com/LemmyNet/lemmy/releases/tag/0.19.18
nvd · CVE-2026-42181
- https://github.com/LemmyNet/lemmy/releases/tag/0.19.18
- https://github.com/LemmyNet/lemmy/security/advisories/GHSA-h6hf-9846-xwrq
osv · GHSA-h6hf-9846-xwrq
- https://github.com/LemmyNet/lemmy/security/advisories/GHSA-h6hf-9846-xwrq
- https://nvd.nist.gov/vuln/detail/CVE-2026-42181
- https://github.com/LemmyNet/lemmy/commit/9ffe586dafac1a46acf17edf90e0165e5503b2f1
- https://github.com/LemmyNet/lemmy
- https://github.com/LemmyNet/lemmy/releases/tag/0.19.18
- https://join-lemmy.org/news/2026-04-20_-_Lemmy_Release_v0.19.18
Related operational evidence
Explicit CVE identifiersNo related operational record is retained in the current change model.