CVE-2026-78433 Gitea private attachment disclosure through repository mismatch

Gitea's web attachment handler skips its cross-repository ownership check for attachments created before 16 January 2026 and checks permissions against the repository named in the request URL instead. An unauthenticated attacker who knows a private attachment's UUID can request it through a publi...

CVE-2026-78433

The Gitea web attachment handler contains an authorization bypass where it skips cross-repository ownership checks for attachments created before 16 January 2026 . Due to this flaw, an unauthenticated attacker who knows a private attachment's UUID can retrieve it by requesting it through a public...

CVE-2026-57886: Authorization Bypass Through User-Controlled Key

Cross-repository issue/comment attachment re-linking can expose private attachment content...

bugzilla -- multiple vulnerabilities

A Bugzilla Security Advisory reports: The following security issues have been discovered in Bugzilla: Information Leak Versions: 4.1.1 to 4.2.1, 4.3.1 In HTML bugmails, all bug IDs and attachment IDs are linkified, and hovering these links displays a tooltip with the bug summary or the attachment...

bugzilla -- multiple vulnerabilities

A Bugzilla Security Advisory reports: Sometimes the information put into the and tags in Bugzilla was not properly escaped, leading to a possible XSS vulnerability. Bugzilla administrators were allowed to put raw, unfiltered HTML into many fields in Bugzilla, leading to a possible XSS...