PT-2026-41614 · Julia · Gccbootstrap Jll+2

Published 2026-05-07 · Updated 2026-05-07

OSV

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).

Related Identifiers

JLSEC-2026-478

Affected Products

Gccbootstrap Jll

Openresty Jll

Zlib Jll

References · 28

• https://osv.dev/vulnerability/JLSEC-2026-478 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YRQAI7H4M4RQZ2IWZUEEXECBE5D56BH2 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5U7OTKZSHY2I3ZFJSR2SHFHW72RKGDK · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAVPQNCG3XRLCLNSQRM3KAN5ZFMVXVTY · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWN4VE3JQR4O2SOUS5TXNLANRPMHWV4I · Vendor Advisory
• https://debian.org/security/2022/dsa-5218 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMBOJ77A7T7PQCARMDUK75TE6LLESZ3O · Vendor Advisory
• https://github.com/nodejs/node/blob/75b68c6e4db515f76df73af476eccf382bbcb00a/deps/zlib/inflate.c#L762-L764 · Note
• https://github.com/curl/curl/issues/9271 · Note
• https://github.com/madler/zlib/commit/eff308af425b67093bab25f80f1ae950166bece1 · Note
• https://github.com/madler/zlib/commit/1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d · Note
• https://github.com/madler/zlib/blob/21767c654d31d2dccdde4330529775c6c5fd5389/zlib.h#L1062-L1063 · Note
• http://openwall.com/lists/oss-security/2022/08/09/1 · Note
• https://security.netapp.com/advisory/ntap-20220901-0005 · Note
• https://support.apple.com/kb/HT213489 · Note