CVE-2026-18924
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent handle is set to share connections with other handles, can lead to use-after-free in the cleanup process.
Predictions
Exploit likelihood
20%
Patch ETA
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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
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 4 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 8.22.0~rc2-1 |
| forky | Affected | — |
| bookworm | Affected | — |
Alpine Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| v3.24 | Fixed | 8.22.0-r0 |
| v3.23 | Fixed | 8.22.0-r0 |
References
- https://www.suse.com/security/cve/CVE-2026-18924.html
- https://security-tracker.debian.org/tracker/CVE-2026-18924
- https://security.alpinelinux.org/vuln/CVE-2026-18924
- https://pkgs.alpinelinux.org/packages?name=curl
- https://curl.se/docs/CVE-2026-18924.html
- https://curl.se/docs/CVE-2026-18924.json
- https://hackerone.com/reports/3916059
CWEs
CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.