CVE-2026-25518
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
DoS in cert-manager-controller via Specially Crafted DNS Response in github.com/cert-manager/cert-manager
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 |
|---|---|---|---|
| Go | github.com/cert-manager/cert-manager | >=1.18.0,<1.18.5 | 1.18.5 |
| Go | github.com/cert-manager/cert-manager | >=1.19.0,<1.19.3 | 1.19.3 |
References
- https://github.com/cert-manager/cert-manager/security/advisories/GHSA-gx3x-vq4p-mhhv
- https://nvd.nist.gov/vuln/detail/CVE-2026-25518
- https://github.com/cert-manager/cert-manager/pull/8467
- https://github.com/cert-manager/cert-manager/pull/8468
- https://github.com/cert-manager/cert-manager/pull/8469
- https://github.com/cert-manager/cert-manager/commit/409fc24e539711a07aae45ed45abbe03dfdad2cc
- https://github.com/cert-manager/cert-manager/commit/9a73a0b3853035827edd37ac463e4803ba10327d
- https://github.com/cert-manager/cert-manager/commit/d4faed26ae12115cceb807cdc12507ebc28980e2
- https://github.com/cert-manager/cert-manager
- https://pkg.go.dev/vuln/GO-2026-4399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.