Is lemmy_api_common affected by CVE-2026-42181?

crates.io lemmy_api_common is affected in <0.19.18.

Is CVE-2026-42181 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-42181

Q: Is CVE-2026-42181 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

crates.io · lemmy_api_common

Summary

Lemmy has SSRF and internal image disclosure in post link metadata via unvalidated og:image

Severity: medium
EPSS: 0.2% (p11)
Also known as: GHSA-h6hf-9846-xwrq
Published: 2026-04-24

References

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

Related advisories

CVE-2026-42180 — medium · crates.io/lemmy_api_common

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.