CVE-2026-43966
unknown
CVSS v3
โ
CVSS v4 NEW
6.3
VIR risk
โ
Description
HTTP Response Splitting via Non-VCHAR Bytes in cow_http_struct_hd:escape_string/2
Predictions
Exploit likelihood
20%
Patch ETA
โ
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 โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ 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 |
|---|---|---|---|
| Hex | cowlib | >=2.9.0 | |
References
CWEs
CWE-113
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.