CVE-2026-43512
critical
CVSS v3
9.8
CVSS v2
—
VIR risk
9.8
Description
Apache Tomcat - Digest authenticator will authenticate any unknown user
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-43512
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-43512.html
Vendor advisory: security@apache.org — https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 9.0.70-2 |
| debian | forky | fixed | 9.0.70-2 |
| debian | sid | fixed | 11.0.22-1 |
| debian | trixie | fixed | 9.0.70-2 |
| debian | bullseye | fixed | 9.0.70-2 |
Package impact
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| apache | tomcat | {"startIncluding":"7.0.0","endIncluding":"7.0.109"} | |
References
- https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73
- http://www.openwall.com/lists/oss-security/2026/05/12/8
- https://nvd.nist.gov/vuln/detail/CVE-2026-43512
- https://github.com/apache/tomcat/commit/3d4d3fae07a6cd9c2eb193c5491001740ec64448
- https://github.com/apache/tomcat/commit/6565a6cb6499e56fe2f34457cec99f9d1c4f39e9
- https://github.com/apache/tomcat/commit/a99c355e8199adbfd67c9a1fffbd85b810b196cd
- https://tomcat.apache.org/security-10.html
- https://tomcat.apache.org/security-11.html
- https://tomcat.apache.org/security-9.html
- https://www.suse.com/security/cve/CVE-2026-43512.html
- https://security-tracker.debian.org/tracker/CVE-2026-43512
- https://github.com/advisories/GHSA-h6fc-48rj-7qqh
CWEs
CWE-592
Verify integrity in audit chain (admin only). AS-IS.