CVE-2026-48962: PMQS IO::Compress · Eval Injection
Affects PMQS IO::CompressSource CVE Database V5
Not known to be exploited · CVSS 7.3 High : upgrade to 2.220 soon.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.220
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Upgrade IO::Compress and IO-Compress to 2.220.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PMQSIO::Compress | Affected
| Fixed in
|
GitHubIO-Compresspkg:github/IO-CompressOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
According to the Red Hat advisory, no effective mitigation currently meets their criteria for ease of use, applicability, and stability. Users should upgrade to IO::Compress version 2.220 or later when available. Red Hat has released updated packages for Red Hat Enterprise Linux 7 Extended Life Cycle Support that address this vulnerability. Applying these updates is the recommended remediation. If you cannot patch yet, no reliable workaround is documented.
Description
IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob. _parseOutputGlob() wraps the caller-supplied output glob string in double quotes and stores it in the parser state; _getFiles() then runs the stored expression through eval STRING. A literal double quote in the output glob closes the dquote wrapper, and the characters that follow are evaluated as Perl. Arbitrary Perl in the output glob executes at the calling process's privilege.
References
- github.com/pmqs/IO-Compress/commit/f2db247bf90d4cc7ee2710be384946081f3b4610.patch (opens in a new tab)
- metacpan.org/release/PMQS/IO-Compress-2.220/changes (opens in a new tab)
- openwall.com/lists/oss-security/2026/05/27/4 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-48962 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2481767 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48962.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30843 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29941 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30860 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30851 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29210 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29182 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30085 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30859 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30858 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29867 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30115 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:30086 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:50262 (opens in a new tab)