CVE record · CVE-2026-73639

Imager::File::PNG versions from 1.003 before 1.004 for Perl write past the end of the row buffer reading a PNG with a tRNS transparency chunk in read_direct8

CVSS 9.1 CriticalCriticalEPSS 0.0070 · 53rd percentile

Critical, because:

CVSS score 9.1: 9.0 or more.

Published by the CVE Program (CNA: CPANSec) at 17 Sept 2026, 21:18 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Not given Package name: Imager-File-PNG https://cpan.org/modules pkg:cpan/Imager-File-PNG	affected 1.003 to before 1.004 custom Other versions: unaffected
Not given	Not given Package name: Imager https://cpan.org/modules pkg:cpan/Imager	affected 1.034 to before 1.035 custom Other versions: unaffected

Identifiers: CVE-2026-73639
CNA: CPANSec
Weakness (CWE): CWE-787
Tags: Memory corruption
Published: 17 Sept 2026
Updated: 22 Sept 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.1	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H	ADP (CISA-ADP)

CISA KEV Not listed.
EPSS 0.0070, the 53rd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/tonycoz/imager/security/advisories/GHSA-jhx5-34j8-9g88 vendor-advisory
github.com/tonycoz/imager/commit/d973bd7e8843f084e8071caa24b89545c88b1e4b.patch patch
github.com/tonycoz/imager/pull/567 issue-tracking
metacpan.org/release/TONYC/Imager-File-PNG-1.004/changes release-notes
metacpan.org/release/TONYC/Imager-1.035/changes release-notes

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.