CVE-2026-77139: TYPO3-EXT-SA-2026-017: Path Traversal in extension "Mask" (mask)

unknown Affects mask/mask. Feed 2026.10.29.3, updated 2026-10-29; CVE published 2026.

TYPO3-EXT-SA-2026-017: Path Traversal in extension "Mask" (mask)

Package: mask/mask Composer
Affected versions: >=9.0.0 and <9.0.11 or <8.3.12
Fixed in: 9.0.11, 8.3.12
Severity: unknown
Exploitation: not on CISA KEV · EPSS 0% (37.9th percentile)
Source: friendsofphp

References

https://news.typo3.com/security/advisory/typo3-ext-sa-2026-017

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

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs How findings are ranked

Related advisories

CVE-2026-109618 KEV critical Upload-progress use-after-free and remote process-memory disclosure also from 2026
CVE-2026-109619 KEV critical Fatal-error backtrace use-after-free and OPcache type confusion also from 2026
CVE-2026-9082 KEV critical Drupal core includes a database abstraction API to ensure that queries executed against th also from 2026
CVE-2026-63030 KEV critical WordPress 6.9.x before 6.9.5 and 7.0.x before 7.0.2 is affected by a REST API batch endpoi also from 2026
CVE-2026-60137 KEV medium WordPress 6.8.x before 6.8.6, 6.9.x before 6.9.5, and 7.0.x before 7.0.2 does not properly also from 2026
CVE-2026-33478 critical AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, also from 2026