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CVE

CURL-CVE-2026-18924

HTTP/2 server push UAF
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CVE

CURL-CVE-2026-18924

HTTP/2 server push UAF

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0.00584%
EPSS Percentile
0.46233%
Introduced Version
8.21.0,ea7134ac874a66107e54ff93657ac565cf2ec4aa
Fix Available
8.22.0,90325ff0444cbdff368bda5d26d6405a0bb6ee43

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