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

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-7040
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-27 13:16:02 UTC
Updated2026-05-07 02:20:57 UTC
DescriptionText::Minify::XS versions from 0.3.0 before 0.7.8 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 minify.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000500000 probability, percentile 0.151480000 (date 2026-05-05)

Problem Types: CWE-122 | CWE-176 | CWE-176 CWE-176 Improper Handling of Unicode Encoding | CWE-122 CWE-122 Heap-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Rrwo Text \ minify\ \ xs

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA RRWO TextMinifyXS affected 0.3.0 0.7.8 custom Not specified

References

ReferenceSourceLinkTags
github.com/robrwo/Text-Minify-XS/security/advisories/GHSA-jqhf-vv4h-77h2 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com Third Party Advisory
www.openwall.com/lists/oss-security/2026/04/27/5 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
metacpan.org/release/RRWO/Text-Minify-XS-v0.7.8/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org Product, Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: CPANSec (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-23T00:00:00.000ZThis issue was identified by CPANSec
CNA2025-04-25T00:00:00.000ZFix uploaded to CPAN

Solutions

CNA: Upgrade to v0.7.8 or later.

Workarounds

CNA: Validate that all strings passed to the minify and minify_utf8 functions.

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