CVE-2021-21359
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Denial of Service in Page Error Handling
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | typo3/cms-core | >=10.0.0,<10.4.14 | 10.4.14 |
| Packagist | typo3/cms-core | >=11.0.0,<11.1.1 | 11.1.1 |
| Packagist | typo3/cms-core | >=9.0.0,<9.5.25 | 9.5.25 |
| Packagist | typo3/cms | >=10.0.0,<10.4.14 | 10.4.14 |
| Packagist | typo3/cms | >=11.0.0,<11.1.1 | 11.1.1 |
| Packagist | typo3/cms | >=9.0.0,<9.5.25 | 9.5.25 |
References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p
- https://nvd.nist.gov/vuln/detail/CVE-2021-21359
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21359.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21359.yaml
- https://packagist.org/packages/typo3/cms-core
- https://typo3.org/security/advisory/typo3-core-sa-2021-005
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.