CVE-2026-13401Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes. The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever. Nameless attributes such as "<a ='c'>" or unbalanced quotes "<a b='''''''c'>" can trigger this condition.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-835

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets2 URLs

By indicator

Full discourse1 post

Open Source Security mailing list@oss_security92d
Disclosure
Perl CPAN XML::Bare through 0.53 CVE-2026-57074: Unbounded character lookahead https://www.openwall.com/lists/oss-security/2026/07/16/1 CVE-2026-13401: Hang in an infinite loop when parsing malformed attributes https://www.openwall.com/lists/oss-security/2026/07/16/2
Post summary
Two new CVEs (CVE-2026-57074 and CVE-2026-13401) have been disclosed for Perl CPAN XML::Bare, detailing an unbounded character lookahead vulnerability and an infinite‑loop hang when parsing malformed attributes.
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