Skip to main content
Public proof of concept

CVE-2026-48962

A public proof of concept exists; no exploitation attested.

  • Published2026-05-27

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-05-2704:16CVE publishedNVD

Versions per branch

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • perlAlmaLinux:8all versions · fixed in 4:5.32.1-474.module_el8.10.0+4162+0aac7c4cand 5 other packages
  • perl-Algorithm-DiffAlmaLinux:8all versions · fixed in 1.1903-10.module_el8.6.0+2766+8bf0b7ce
  • perl-Archive-TarAlmaLinux:8all versions · fixed in 2.38-4.module_el8.10.0+4205+6175afda
  • perl-Archive-ZipAlmaLinux:8all versions · fixed in 1.68-3.module_el8.6.0+2766+8bf0b7ce
  • perl-Attribute-HandlersAlmaLinux:8all versions · fixed in 1.01-474.module_el8.10.0+4162+0aac7c4c
  • perl-autodieAlmaLinux:8all versions · fixed in 2.34-1.module_el8.6.0+2766+8bf0b7ce
  • perl-AutoSplitAlmaLinux:8all versions · fixed in 5.74-474.module_el8.10.0+4162+0aac7c4cand 1 other package
  • perl-autouseAlmaLinux:8all versions · fixed in 1.11-474.module_el8.10.0+4162+0aac7c4cand 1 other package

176 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-48962 Red Hat Product Security826 products fixed

    perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob

  • RHSA-2026:50262 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: perl:5.32 security update

  • RHSA-2026:30860 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: perl-IO-Compress security update

  • RHSA-2026:30859 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: perl-IO-Compress security update

  • RHSA-2026:30851 Red Hat Product Security794 products fixed

    Red Hat Security Advisory: perl:5.32 security update

  • RHSA-2026:30858 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: perl-IO-Compress security update

8 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2026:50262 · 4 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  2. Workaround from the vendor Red Hat Product Security RHSA-2026:50262 · 948 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedJoakimBulow/CVE-2026-48962
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
2026-05-27
Last Modified
2026-08-05
MSRC Title
IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob

Frequently asked questions

What is CVE-2026-48962?

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.

Is CVE-2026-48962 actively exploited?

Active exploitation of CVE-2026-48962 has not been confirmed. Its EPSS score was 0.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-48962?

CVE-2026-48962 has a CVSS v3 base score of 7.3 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Running perl-IO-Compress? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, October 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database