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.
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
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| 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 |
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