CVE-2026-8932

unknown

Published 2026-07-03 · Modified 2026-07-03

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS settings related to client certificates were left out from the configuration match checks, making them match too easily. In particular options related to the private key.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-8932 NameCVE-2026-8932 SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Vulnerable and fixed packages The table below lists information on source packages. Source PackageReleaseVersionStatus curl (PTS)bullseye7.74.0-1.3+deb11u13vulnerable bullseye…

CVE-2026-8932

Name	CVE-2026-8932
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
curl (PTS)	bullseye	7.74.0-1.3+deb11u13	vulnerable
	bullseye (security)	7.74.0-1.3+deb11u16	vulnerable
	bookworm	7.88.1-10+deb12u14	vulnerable
	bookworm (security)	7.88.1-10+deb12u5	vulnerable
	trixie	8.14.1-2+deb13u3	vulnerable
	forky	8.20.0-5	vulnerable
	sid	8.21.0~rc3-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
curl	source	(unstable)	8.21.0~rc2-1

Notes

[trixie] - curl <no-dsa> (Minor issue)
https://curl.se/docs/CVE-2026-8932.html
Introduced with: https://github.com/curl/curl/commit/a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4 (curl-7_7)
Fixed by: https://github.com/curl/curl/commit/7541ae569d82fb308a5e2d94916027da4fa3ba3e (rc-8_21_0-1, curl-8_21_0)

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[trixie] - curl <no-dsa> (Minor issue)https://curl.se/docs/CVE-2026-8932.htmlIntroduced with: https://github.com/curl/curl/commit/a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4 (curl-7_7)Fixed by: https://github.com/curl/curl/commit/7541ae569d82fb308a5e2d94916027da4fa3ba3e (rc-8_21_0-1, curl-8_21_0)

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Fixed	`8.21.0~rc2-1`
forky	Affected	—
bullseye	Affected	—
bookworm	Affected	—

References

CWEs

CWE-305

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.