VulnSocial

CVE-2026-48961Disclosure

LOWCVSS 7.3 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

Back to dashboard
0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-755

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-28: 1Technical Details · 2026-05-28: 105-28
Signal classification1 categories
Disclosure
1100.0%
Referenced assets2 URLs
Full discourse1 post
  • Open Source Security mailing list@oss_security
    Disclosure

    CVE-2026-48961: IO::Compress from 2.207 before 2.220 zipdetails crashes on Info-ZIP Unix Extra Field with 8-byte UID or GID https://www.openwall.com/lists/oss-security/2026/05/27/3 CVE-2026-48962: IO::Compress before 2.220 can execute arbitrary code in File::GlobMapper via output glob https://www.openwall.com/lists/oss-security/2026/05/27/4

    Post summary

    The snippet announces two CVEs affecting IO::Compress: one causing a crash via an Info-ZIP Unix Extra Field and another enabling arbitrary code execution via File::GlobMapper. No PoC, exploit code, active exploitation, or patch information is provided.

    10020287
    4.7K followersView on X

Explore more

Back to dashboard