PT-2026-40990 · Julia · Curl Jll+1

Published 2026-05-04 · Updated 2026-05-04

OSV

When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In that rename operation, it might accidentally widen the permissions for the target file, leaving the updated file accessible to more users than intended.

Related Identifiers

JLSEC-2026-394

Affected Products

Curl Jll

Libcurl Jll

References · 9

• https://osv.dev/vulnerability/JLSEC-2026-394 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY · Vendor Advisory
• https://debian.org/security/2022/dsa-5197 · Vendor Advisory
• https://security.netapp.com/advisory/ntap-20220915-0003 · Note
• https://hackerone.com/reports/1573634 · Note
• http://seclists.org/fulldisclosure/2022/Oct/41 · Note
• http://seclists.org/fulldisclosure/2022/Oct/28 · Note
• https://support.apple.com/kb/HT213488 · Note
• https://security.gentoo.org/glsa/202212-01 · Note