CVE-2026-48961

libio-compress-perl: IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subrout...

CVE-2026-48961 is fixed in 8 products on 1 platform, first by ALAS2023-2026-1825, released June 11, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.3
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0026
18th percentile

IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID. When decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255. Library callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool.

Where it's fixed

ProductFixed inFixReleased
Linux
libio-compress-perl · Debian 13.5 (trixie) 2.213-1+deb13u1 DEBIAN-CVE-2026-48961 Jun 24, 2026
libio-compress-perl · Debian 14 2.220-1 DEBIAN-CVE-2026-48961 Jun 24, 2026
perl · Debian 13.5 (trixie) 5.40.1-6+deb13u1 DEBIAN-CVE-2026-48961 Jun 24, 2026
perl · Debian 14 5.40.1-8 DEBIAN-CVE-2026-48961 Jun 24, 2026
perl-Compress-Raw-Bzip2 · Fedora 43 2.218-1.fc43 FEDORA-2026-FB1F15CE04 Jun 22, 2026
perl-Compress-Raw-Bzip2-debuginfo · Fedora 43 2.218-1.fc43 FEDORA-2026-FB1F15CE04 Jun 22, 2026
perl-Compress-Raw-Bzip2-debugsource · Fedora 43 2.218-1.fc43 FEDORA-2026-FB1F15CE04 Jun 22, 2026
perl-Compress-Raw-Bzip2-tests · Fedora 43 2.218-1.fc43 FEDORA-2026-FB1F15CE04 Jun 22, 2026
perl-IO-Compress · Fedora 43 2.221-1.fc43 FEDORA-2026-FB1F15CE04 Jun 22, 2026
perl-IO-Compress · amzn 2023 2.217-1.amzn2023.0.2 ALAS2023-2026-1825 Jun 11, 2026
perl-IO-Compress · opensuse-leap 16.0 2.220.0-bp160.1.1 OPENSUSE-SU-2026:21177-1 Jun 30, 2026
perl-IO-Compress-tests · Fedora 43 2.221-1.fc43 FEDORA-2026-FB1F15CE04 Jun 22, 2026
perl-IO-Compress-tests · amzn 2023 2.217-1.amzn2023.0.2 ALAS2023-2026-1825 Jun 11, 2026

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.