CVE catalog

CVE-2025-5399

curl: CVE-2025-5399

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Jun 3, 2025, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.38% · Oct 25, 2026

Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop. There is no other way for the application to escape or exit this loop other than killing the thread/process. This might be used to DoS libcurl-using application.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	curl	sid	`8.23.0-1`	fixed
Debian	curl	forky	`8.22.0-1`	fixed
Debian	curl	trixie	`8.14.1-2+deb13u5`	fixed
Debian	curl	trixie-security	`8.14.1-2+deb13u7`	fixed
Debian	curl	bookworm	`7.88.1-10+deb12u15`	not affected
Debian	curl	bookworm-security	`7.88.1-10+deb12u5`	not affected
Alpine	curl	3.19	`8.14.1-r0`	fixed
Alpine	curl	3.20	`8.14.1-r0`	fixed
Alpine	curl	3.21	`8.14.1-r0`	fixed
Alpine	curl	3.22	`8.14.1-r0`	fixed
Alpine	curl	3.23	`8.14.1-r0`	fixed
Alpine	curl	3.24	`8.14.1-r0`	fixed
Opensuse	curl	tumbleweed	`8.14.1-4.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	curl	source	sid	`8.14.1-1`	not yet assigned	Not reported	Not reported
Debian	curl	source	forky	`8.14.1-1`	not yet assigned	Not reported	Not reported
Debian	curl	source	trixie	`8.14.1-1`	not yet assigned	Not reported	Not reported
Debian	curl	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Alpine	curl	apk	3.19	`8.14.1-r0`	Not reported	ALPINE-CVE-2025-5399	Not reported
Alpine	curl	apk	3.20	`8.14.1-r0`	Not reported	ALPINE-CVE-2025-5399	Not reported
Alpine	curl	apk	3.21	`8.14.1-r0`	Not reported	ALPINE-CVE-2025-5399	Not reported
Alpine	curl	apk	3.22	`8.14.1-r0`	Not reported	ALPINE-CVE-2025-5399	Not reported
Alpine	curl	apk	3.23	`8.14.1-r0`	Not reported	ALPINE-CVE-2025-5399	Not reported
Alpine	curl	apk	3.24	`8.14.1-r0`	Not reported	ALPINE-CVE-2025-5399	Not reported
Opensuse	curl	rpm	tumbleweed	`8.14.1-4.1`	Not reported	OPENSUSE-SU-2025:15213-1	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[curl-fish-completion]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · noarch · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[curl-zsh-completion]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · noarch · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[libcurl4]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[libcurl4-32bit]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[libcurl-devel]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[libcurl-devel-32bit]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[libcurl-devel-doc]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · noarch · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed
[wcurl]Unknown
Source package: [curl]
Details (1)
- 8.21.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 8.14.1-4.1
  Version impact unknown
  dsa · curl · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[curl]Not affected
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl3-gnutls]Not affected
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl3-nss]Not affected
Source package: [curl]
Details (4)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl4]Not affected
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl4-doc]Not affected
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · all · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · all · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · all · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · all · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · all · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · all · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl4-gnutls-dev]Not affected
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl4-nss-dev]Not affected
Source package: [curl]
Details (4)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
[libcurl4-openssl-dev]Not affected
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Not affected
  dsa · curl · debian · bookworm

[Debian 13 (Trixie)]

[curl]Fixed
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
[libcurl3t64-gnutls]Fixed
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
[libcurl4-doc]Fixed
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · all · trixie
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.14.1-2+deb13u4 · all · trixie
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.14.1-2+deb13u7 · all · trixie-security
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
[libcurl4-gnutls]Fixed
Source package: [curl]
Details (2)
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 8.14.1-1
  dsa · curl · debian · 13

Next results

Observed: Oct 27, 2026, 1:54:34 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]