VulnerabilityDeferred

CVE-2026-57074

Truncated strings such as "<a/" can trigger an out-of-bounds read.

CRITICAL 9.1EPSS 0.39%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

XML::Bare versions through 0.53 for Perl have an unbounded character lookahead. The parserc_parse function attempts to check for multicharacter strings such as "<![CDATA" or element terminators such as ">" without checking that the offsets are within the buffer. Truncated strings such as "<a/" can trigger an out-of-bounds read.

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS: 0.39% probability · 32th percentile
CISA KEV: Not listed
Weakness: CWE-125
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

References

https://github.com/nanoscopic/perl-XML-Bare/pull/1
https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-57074-r1.patch
http://www.openwall.com/lists/oss-security/2026/07/16/1

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.