CVE-2026-92391
curl_mime_free stack overflow by recursion
No known exploitation. EPSS puts it in the 19th percentile. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
- CurlAffected: ≥ 8.22.0, ≤ 8.22.0Upgrade to: after 8.22.0Affected: ≥ 8.21.0, ≤ 8.21.0Upgrade to: after 8.21.0Affected: ≥ 8.20.0, ≤ 8.20.0Upgrade to: after 8.20.0Affected: ≥ 8.19.0, ≤ 8.19.0Upgrade to: after 8.19.0 + 74 more branchesStated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
A deeply nested multipart MIME structure constructed via the public API causes a stack overflow in libcurl during normal cleanup operations. An excessive recursion depth within `curl_mime_free` leads to unbounded stack frame allocation during structure traversal, ultimately crashing the host process.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.3% chance of exploitation activity in the next 30 days, which ranks it in the 19th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
3 events over 2 days, from the signal feeds we watch.
- OpenVAS check added
- Publishedrecord updated
Affected products
Sources
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