CVE-2026-29178 - Lemmy: Unauthenticated SSRF via file_type query parameter injection in image end...

CVE ID : CVE-2026-29178 Published : March 6, 2026, 6:16 p.m. | 48 minutes ago Description : 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. Severity: 7.7 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...