Packages / Debian 13 (Trixie) / Source / libs / libwebsockets

Source Package: libwebsockets (4.3.5-1+deb13u3)

lightweight C websockets library

The following binary packages are built from this source package:

libwebsockets19t64
lightweight C websockets library
libwebsockets-dev
lightweight C websockets library - development files
libwebsockets-evlib-ev
lightweight C websockets library
libwebsockets-evlib-glib
lightweight C websockets library
libwebsockets-evlib-uv
lightweight C websockets library
libwebsockets-test-server
lightweight C websockets library - test servers
libwebsockets-test-server-common
lightweight C websockets library - test servers data

Known vulnerabilities

Matching against OpenFactory catalog package versions is in progress.

CVE Severity Version impact

CVE	Severity	Version impact
[CVE-2026-95114] Published: Oct 13, 2026, 12:00:00 AM UTC libwebsockets contains an out-of-bounds read vulnerability in the LEJP incremental parser in lib/misc/lejp.c. This allows a remote attacker to cause a denial of service	High(7.5)	Affected Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Affected nvd · libwebsockets · debian · 13
[CVE-2026-95115] Published: Oct 13, 2026, 12:00:00 AM UTC Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parser	High(7.5)	Affected Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Affected nvd · libwebsockets · debian · 13

[CVE-2026-95114]

Published: Oct 13, 2026, 12:00:00 AM UTC

libwebsockets contains an out-of-bounds read vulnerability in the LEJP incremental parser in lib/misc/lejp.c. This allows a remote attacker to cause a denial of service

High(7.5)

Affected

Details (7)

4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · all · trixie-security
Affected
nvd · libwebsockets · debian · 13

[CVE-2026-95115]

Published: Oct 13, 2026, 12:00:00 AM UTC

Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parser

High(7.5)

Affected

Details (7)

4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · amd64 · trixie-security
Affected
nvd · libwebsockets · debian · 13
4.3.5-1+deb13u3 · all · trixie-security
Affected
nvd · libwebsockets · debian · 13

Fixed and unaffected versions (5)

CVE	Severity	Version impact
[CVE-2026-19773] Published: Sep 15, 2026, 7:17:00 PM UTC libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations o	Critical(9.8)	Fixed Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Fixed · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13
[CVE-2026-78161] Published: Aug 24, 2026, 12:45:08 AM UTC A vulnerability was found in warmcat libwebsockets 4.5.0. Impacted is the function report_raw_cbor of the file lib/misc/lecp.c of the component LECP CBOR Recording. The manipulation results in out-of-	High(7.3)	Fixed Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13
[CVE-2026-10650] Published: Jun 2, 2026, 9:15:10 PM UTC A flaw has been found in warmcat libwebsockets up to 4.5.8. This issue affects the function lws_ssh_parse_plaintext of the file plugins/protocol_lws_ssh_base/sshd.c of the component SSH Protocol Handl	Medium(5.5)	Fixed Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Fixed · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13
[CVE-2025-11678] Published: Oct 20, 2025, 1:51:17 PM UTC Libwebsockets vulnerabilities	High(7.6)	Fixed Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13
[CVE-2025-11677] Published: Oct 20, 2025, 1:41:10 PM UTC Libwebsockets vulnerabilities	Medium(6.3)	Fixed Details (7) `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · amd64 · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u3` · all · trixie-security Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13

Last synced: Oct 28, 2026, 1:40:02 AM UTC

[CVE catalog]

Sources

Debian 13 (Trixie) main amd64Sep 1, 2026
Authoritative source; repository metadata signature verified
Signature evidence
trixie-main-amd64:3ab4e811cf4f3e5a335d382c58cc19d85f1abe7a4ef4689160ca1f637fa0e9b3
Repository-signature verification record
Signed object
https://deb.debian.org/debian/dists/trixie/InRelease
Signed-object SHA-256
98b25b5cd185c59d34aa6e4c3e9b5b8f01bbe9d104fe2dcfbcd30dc0a14a59ed
Signer fingerprint
4CB50190207B4758A3F73A796ED0E7B82643E131
Keyring revision
debian-archive-keyring.gpg
SHA-256 506b815cbb32d9b6066b4a2aa524071e071761e7e7f68c3ac74f3061ba852017
Tool and policy
gpgv (GnuPG) 2.4.9
openfactory-software-catalog-signature-v1
Verification time
Sep 1, 2026
Repository metadata hash linkage
Path
main/binary-amd64/Packages.xz
Expected SHA-256
3ab4e811cf4f3e5a335d382c58cc19d85f1abe7a4ef4689160ca1f637fa0e9b3
Observed SHA-256
3ab4e811cf4f3e5a335d382c58cc19d85f1abe7a4ef4689160ca1f637fa0e9b3
Result
match verified
Debian 13 (Trixie) main arm64Sep 1, 2026
Authoritative source; repository metadata signature verified
Signature evidence
trixie-main-arm64:753da751bbc7a679f48bd1b623ffd4479cb6861c426118284c76eb82909e4908
Repository-signature verification record
Signed object
https://deb.debian.org/debian/dists/trixie/InRelease
Signed-object SHA-256
98b25b5cd185c59d34aa6e4c3e9b5b8f01bbe9d104fe2dcfbcd30dc0a14a59ed
Signer fingerprint
4CB50190207B4758A3F73A796ED0E7B82643E131
Keyring revision
debian-archive-keyring.gpg
SHA-256 506b815cbb32d9b6066b4a2aa524071e071761e7e7f68c3ac74f3061ba852017
Tool and policy
gpgv (GnuPG) 2.4.9
openfactory-software-catalog-signature-v1
Verification time
Sep 1, 2026
Repository metadata hash linkage
Path
main/binary-arm64/Packages.xz
Expected SHA-256
753da751bbc7a679f48bd1b623ffd4479cb6861c426118284c76eb82909e4908
Observed SHA-256
753da751bbc7a679f48bd1b623ffd4479cb6861c426118284c76eb82909e4908
Result
match verified
Debian SecurityOct 27, 2026
Authoritative source; repository metadata signature verified
Signature evidence
trixie-security-main-amd64:cbc4bef76e3c37ead4980674b88d8b1cd971e3ef018f45488da6b988f55946f3
Repository-signature verification record
Signed object
https://security.debian.org/debian-security/dists/trixie-security/InRelease
Signed-object SHA-256
e7fa27c6347540f93dc90c68b4361e02148fc15bdd516a816d6f56449c3c3baf
Signer fingerprint
B0CAB9266E8C3929798B3EEEBDE6D2B9216EC7A8
Keyring revision
debian-archive-keyring.gpg
SHA-256 506b815cbb32d9b6066b4a2aa524071e071761e7e7f68c3ac74f3061ba852017
Tool and policy
gpgv (GnuPG) 2.4.9
openfactory-software-catalog-signature-v1
Verification time
Oct 28, 2026
Repository metadata hash linkage
Path
main/binary-amd64/Packages.xz
Expected SHA-256
cbc4bef76e3c37ead4980674b88d8b1cd971e3ef018f45488da6b988f55946f3
Observed SHA-256
cbc4bef76e3c37ead4980674b88d8b1cd971e3ef018f45488da6b988f55946f3
Result
match verified