CVE-2026-42874
low
CVSS v3
3.7
CVSS v4 NEW
—
VIR risk
3.7
Description
Microdot has HTTP response splitting in Response.set_cookie()
Predictions
Exploit likelihood
47%
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.
References
- https://github.com/miguelgrinberg/microdot/blob/main/CHANGES.md
- https://github.com/miguelgrinberg/microdot/commit/99b281b45faef8472410f2d56bfef496dfbd95d5
- https://github.com/miguelgrinberg/microdot/security/advisories/GHSA-7wc8-wvc4-m498
- https://nvd.nist.gov/vuln/detail/CVE-2026-42874
- https://github.com/miguelgrinberg/microdot
- https://github.com/advisories/GHSA-7wc8-wvc4-m498
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.