lemmy_server (=0.13.1) potentially affected by CVE-2026-29178 via lemmy_routes (=0.13.1)
Details
CVSS v3
8.7
CVSS v4
7.7
NVD published
2026-03-06 18:16:20
EPSS
<0.1% probability · 17.0th percentile — 2026-04-05
Affected versions
Not available in our cache.
Summary
Lemmy, a link aggregator and forum for the fediverse, is vulnerable to server-side request forgery via a dependency on activitypub_federation, a framework for ActivityPub federation in Rust. Prior to version 0.19.16, the GET /api/v4/image/{filename} endpoint is vulnerable to unauthenticated SSRF through parameter injection in the file_type query parameter. An attacker can inject arbitrary query parameters into the internal request to pict-rs, including the proxy parameter which causes pict-rs to fetch arbitrary URLs. This issue has been patched in version 0.19.16.
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