CVE-2026-72889 · agentprime

Net::OAuth versions before 0.33 for Perl allow the sender to choose the signature algorithm in verify

CVSS 9.8 CriticalCriticalEPSS 0.0045 · 39th percentile

Critical, because:

CVSS score 9.8: 9.0 or more.

Published by the CVE Program (CNA: CPANSec) at 19 Aug 2026, 07:20 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: Net-OAuth https://cpan.org/modules pkg:cpan/Net-OAuth	affected before 0.33 custom Other versions: unaffected

Identifiers

CVE-2026-72889

CNA

CPANSec

Weakness (CWE)

CWE-347 · CWE-757

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
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	ADP (CISA-ADP)

CISA KEV Not listed.
EPSS 0.0045, the 39th percentile, on 5 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 19 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/vurtdev/Net-OAuth/security/advisories/GHSA-c8rm-g5cm-4pf5 vendor-advisory
github.com/vurtdev/Net-OAuth/commit/c467adf45c8d77ac4b92ad78b3eebf949252ba7f.patch patch
metacpan.org/release/RRWO/Net-OAuth-0.33/changes release-notes
datatracker.ietf.org/doc/html/rfc5849#section-3.4.2 technical-description
datatracker.ietf.org/doc/html/rfc5849#section-3.4.3 technical-description

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.