CVE-2026-7040

Description

Text::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.

CVSS v3.1 Score

7.5

HIGH

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

EPSS — Exploit Prediction

0.0005

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-122 CWE-122

CWE-176 CWE-176

Affected Products

Vendor	Product	Versions
rrwo	text\	0.3.0 — 0.7.8

References

Other References

https://github.com/robrwo/Text-Minify-XS/security/advisories/GHSA-jqhf-vv4h-77h2 https://metacpan.org/release/RRWO/Text-Minify-XS-v0.7.8/changes http://www.openwall.com/lists/oss-security/2026/04/27/5

Frequently Asked Questions

What is CVE-2026-7040? +

Text::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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-7040? +

CVE-2026-7040 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0005, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-7040? +

CVE-2026-7040 affects products from rrwo, specifically: text\. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-7040? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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