2021-03-16-1: Regular expression Denial of Service

unknown Affects brotkrueml/codehighlight. Feed 2026.10.29.4, updated 2026-10-29.

Regular expression Denial of Service

Package: brotkrueml/codehighlight Composer
Affected versions: <2.5.0
Fixed in: 2.5.0
Severity: unknown
Exploitation: not on CISA KEV
Source: friendsofphp

References

https://typo3.org/security/advisory/typo3-ext-sa-2021-002

NVD record brotkrueml/codehighlight advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

# or, without Composer
pipx install phpwarden   &&   phpwarden deps composer.lock

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Related advisories

GHSA-4cv2-xc5f-px8h medium Denial of Service in extension "Code Highlight" (codehighlight) same package: brotkrueml/codehighlight
GHSA-65xh-hh78-6454 medium Denial of Service in extension "Code Highlight" (codehighlight) same package: brotkrueml/codehighlight
2021-11-10-1 unknown Regular expression Denial of Service same package: brotkrueml/codehighlight