CVE-2026-7040

Text::Minify::XS versions from 0.3.0 before 0.7.8 for Perl have heap overflow when processing some malformed UTF-8 characters

HIGH
7.5
CVSS Score
Published: April 27, 2026 at 12:29 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
2 products affected across 1 vendorTextText::Minify::XS

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Text::Minify::XS versions from v0.3.0 before v0.7.8 for Perl have a heap overflow when processing some malformed UTF-8 characters. The minify functions mishandled some malformed UTF-8 characters, leading to heap corruption. Note that the minify_utf8 function is an alias for minnify.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.3.0 ≤ v < 0.7.8\
0.3.0 ≤ v < 0.7.80.3.0
Affected range stops below 0.7.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/04/27/5

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-176CWE-122

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