CVE-2026-3260
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Undertow: Denial of Service via Multipart/Form-Data Parsing on HTTP GET Requests
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.
OS impact
Debian Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| sid | Affected | — |
| forky | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | io.undertow:undertow-core | <2.4.0.Beta1 | 2.4.0.Beta1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-3260
- https://access.redhat.com/security/cve/CVE-2026-3260
- https://bugzilla.redhat.com/show_bug.cgi?id=2443010
- https://github.com/undertow-io/undertow
- https://github.com/undertow-io/undertow/releases/tag/2.4.0.Beta1
- https://security-tracker.debian.org/tracker/CVE-2026-3260
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.