Packages / Debian 13 (Trixie) / libdevel / libwebsockets-dev

Package: libwebsockets-dev (4.3.5-1+deb13u1)

lightweight C websockets library - development files

Other Packages Related to libwebsockets-dev:

dep: [libwebsockets19t64] (= 4.3.5-1+deb13u1)
lightweight C websockets library
dep: [libwebsockets-evlib-ev] (= 4.3.5-1+deb13u1)
lightweight C websockets library
dep: [libwebsockets-evlib-uv] (= 4.3.5-1+deb13u1)
lightweight C websockets library
dep: [libwebsockets-evlib-glib] (= 4.3.5-1+deb13u1)
lightweight C websockets library
dep: [libev-dev]
static library, header files, and docs for libev
dep: [libssl-dev]
Secure Sockets Layer toolkit - development files
dep: [libuv1-dev]
asynchronous event notification library - development files
dep: [zlib1g-dev]
compression library - development
dep: [libcap-dev]
POSIX 1003.1e capabilities (development)

Download libwebsockets-dev

Architecture	Package size	Installed size	Files	Package
amd64	568 KiB	2.1 MiB	list of files	Download
arm64	560 KiB	2.1 MiB	list of files	Download

Package file paths (159)

Paths come from the repository package-file index for the observed builds. They describe archive/package associations, not every file that will exist on a running system after maintainer scripts, alternatives, generated state, diversions, or installation choices.

/usr/include/libwebsockets/abstract/abstract.h
/usr/include/libwebsockets/abstract/protocols.h
/usr/include/libwebsockets/abstract/protocols/smtp.h
/usr/include/libwebsockets/abstract/transports.h
/usr/include/libwebsockets/abstract/transports/raw-skt.h
/usr/include/libwebsockets/abstract/transports/unit-test.h
/usr/include/libwebsockets.h
/usr/include/libwebsockets/lws-adopt.h
/usr/include/libwebsockets/lws-async-dns.h
/usr/include/libwebsockets/lws-bb-i2c.h
/usr/include/libwebsockets/lws-bb-spi.h
/usr/include/libwebsockets/lws-button.h
/usr/include/libwebsockets/lws-cache-ttl.h
/usr/include/libwebsockets/lws-callbacks.h
/usr/include/libwebsockets/lws-cgi.h
/usr/include/libwebsockets/lws-client.h
/usr/include/libwebsockets/lws-conmon.h
/usr/include/libwebsockets/lws-context-vhost.h
/usr/include/libwebsockets/lws-cose.h
/usr/include/libwebsockets/lws-dbus.h
/usr/include/libwebsockets/lws-diskcache.h
/usr/include/libwebsockets/lws-display.h
/usr/include/libwebsockets/lws-dll2.h
/usr/include/libwebsockets/lws-dsh.h
/usr/include/libwebsockets/lws-eventlib-exports.h
/usr/include/libwebsockets/lws-fault-injection.h
/usr/include/libwebsockets/lws-freertos.h
/usr/include/libwebsockets/lws-fts.h
/usr/include/libwebsockets/lws-genaes.h
/usr/include/libwebsockets/lws-gencrypto.h
/usr/include/libwebsockets/lws-genec.h
/usr/include/libwebsockets/lws-genhash.h
/usr/include/libwebsockets/lws-genrsa.h
/usr/include/libwebsockets/lws-gpio.h
/usr/include/libwebsockets/lws-http.h
/usr/include/libwebsockets/lws-i2c.h
/usr/include/libwebsockets/lws-ili9341-spi.h
/usr/include/libwebsockets/lws-jose.h
/usr/include/libwebsockets/lws-jwe.h
/usr/include/libwebsockets/lws-jwk.h
/usr/include/libwebsockets/lws-jws.h
/usr/include/libwebsockets/lws-lecp.h
/usr/include/libwebsockets/lws-led.h
/usr/include/libwebsockets/lws-lejp.h
/usr/include/libwebsockets/lws-logs.h
/usr/include/libwebsockets/lws-lwsac.h
/usr/include/libwebsockets/lws-map.h
/usr/include/libwebsockets/lws-metrics.h
/usr/include/libwebsockets/lws-misc.h
/usr/include/libwebsockets/lws-mqtt.h
/usr/include/libwebsockets/lws-netdev.h
/usr/include/libwebsockets/lws-network-helper.h
/usr/include/libwebsockets/lws-optee.h
/usr/include/libwebsockets/lws-protocols-plugins.h
/usr/include/libwebsockets/lws-purify.h
/usr/include/libwebsockets/lws-pwm.h
/usr/include/libwebsockets/lws-retry.h
/usr/include/libwebsockets/lws-ring.h
/usr/include/libwebsockets/lws-secure-streams-client.h
/usr/include/libwebsockets/lws-secure-streams.h
/usr/include/libwebsockets/lws-secure-streams-policy.h
/usr/include/libwebsockets/lws-sequencer.h
/usr/include/libwebsockets/lws-service.h
/usr/include/libwebsockets/lws-settings.h
/usr/include/libwebsockets/lws-sha1-base64.h
/usr/include/libwebsockets/lws-smd.h
/usr/include/libwebsockets/lws-spa.h
/usr/include/libwebsockets/lws-spi.h
/usr/include/libwebsockets/lws-ssd1306-i2c.h
/usr/include/libwebsockets/lws-state.h
/usr/include/libwebsockets/lws-struct.h
/usr/include/libwebsockets/lws-system.h
/usr/include/libwebsockets/lws-test-sequencer.h
/usr/include/libwebsockets/lws-threadpool.h
/usr/include/libwebsockets/lws-timeout-timer.h
/usr/include/libwebsockets/lws-tls-sessions.h
/usr/include/libwebsockets/lws-tokenize.h
/usr/include/libwebsockets/lws-vfs.h
/usr/include/libwebsockets/lws-writeable.h
/usr/include/libwebsockets/lws-write.h
/usr/include/libwebsockets/lws-ws-close.h
/usr/include/libwebsockets/lws-ws-ext.h
/usr/include/libwebsockets/lws-ws-state.h
/usr/include/libwebsockets/lws-x509.h
/usr/include/lws_config.h
/usr/lib/aarch64-linux-gnu/cmake/libwebsockets/libwebsockets-config.cmake
/usr/lib/aarch64-linux-gnu/cmake/libwebsockets/libwebsockets-config-version.cmake
/usr/lib/aarch64-linux-gnu/cmake/libwebsockets/LibwebsocketsTargets.cmake
/usr/lib/aarch64-linux-gnu/cmake/libwebsockets/LibwebsocketsTargets-none.cmake
/usr/lib/aarch64-linux-gnu/cmake/libwebsockets/LwsCheckRequirements.cmake
/usr/lib/aarch64-linux-gnu/libwebsockets.a
/usr/lib/aarch64-linux-gnu/libwebsockets.so
/usr/lib/aarch64-linux-gnu/pkgconfig/libwebsockets.pc
/usr/lib/x86_64-linux-gnu/cmake/libwebsockets/libwebsockets-config.cmake
/usr/lib/x86_64-linux-gnu/cmake/libwebsockets/libwebsockets-config-version.cmake
/usr/lib/x86_64-linux-gnu/cmake/libwebsockets/LibwebsocketsTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/libwebsockets/LibwebsocketsTargets-none.cmake
/usr/lib/x86_64-linux-gnu/cmake/libwebsockets/LwsCheckRequirements.cmake
/usr/lib/x86_64-linux-gnu/libwebsockets.a
/usr/lib/x86_64-linux-gnu/libwebsockets.so
/usr/lib/x86_64-linux-gnu/pkgconfig/libwebsockets.pc
/usr/share/doc/libwebsockets-dev/changelog.Debian.gz
/usr/share/doc/libwebsockets-dev/changelog.gz
/usr/share/doc/libwebsockets-dev/copyright
/usr/share/doc/libwebsockets-dev/mainpage.md
/usr/share/doc/libwebsockets-dev/README.async-dns.md.gz
/usr/share/doc/libwebsockets-dev/README.build-android.md
/usr/share/doc/libwebsockets-dev/README.build.md.gz
/usr/share/doc/libwebsockets-dev/README.build-windows.md.gz
/usr/share/doc/libwebsockets-dev/README.captive-portal-detection.md
/usr/share/doc/libwebsockets-dev/README.cbor-cose.md.gz
/usr/share/doc/libwebsockets-dev/README.cbor-lecp.md.gz
/usr/share/doc/libwebsockets-dev/README.ci.md
/usr/share/doc/libwebsockets-dev/README.cmake.md
/usr/share/doc/libwebsockets-dev/README.coding.md.gz
/usr/share/doc/libwebsockets-dev/README.content-security-policy.md.gz
/usr/share/doc/libwebsockets-dev/README.contributing.md
/usr/share/doc/libwebsockets-dev/README.crypto-apis.md.gz
/usr/share/doc/libwebsockets-dev/README.ctest.md.gz
/usr/share/doc/libwebsockets-dev/README.debugging.md
/usr/share/doc/libwebsockets-dev/README.esp32.md
/usr/share/doc/libwebsockets-dev/README.event-libs.md
/usr/share/doc/libwebsockets-dev/README.event-loops-intro.md.gz
/usr/share/doc/libwebsockets-dev/README.fault-injection.md.gz
/usr/share/doc/libwebsockets-dev/README.h2-long-poll.md
/usr/share/doc/libwebsockets-dev/README.http-cache.md
/usr/share/doc/libwebsockets-dev/README.http-fallback.md.gz
/usr/share/doc/libwebsockets-dev/README.http_parser.md
/usr/share/doc/libwebsockets-dev/README.jit-trust.md.gz
/usr/share/doc/libwebsockets-dev/README.json-lejp.md.gz
/usr/share/doc/libwebsockets-dev/README.jwt.md.gz
/usr/share/doc/libwebsockets-dev/README.libressl.md
/usr/share/doc/libwebsockets-dev/README.lifecycle.md
/usr/share/doc/libwebsockets-dev/README.logging.md.gz
/usr/share/doc/libwebsockets-dev/README.lws_cache.md.gz
/usr/share/doc/libwebsockets-dev/README.lws_conmon.md
/usr/share/doc/libwebsockets-dev/README.lws_dll.md
/usr/share/doc/libwebsockets-dev/README.lws_map.md
/usr/share/doc/libwebsockets-dev/README.lws_metrics.md.gz
/usr/share/doc/libwebsockets-dev/README.lws_plugins.md
/usr/share/doc/libwebsockets-dev/README.lws_retry.md
/usr/share/doc/libwebsockets-dev/README.lws_sequencer.md.gz
/usr/share/doc/libwebsockets-dev/README.lws_struct.md
/usr/share/doc/libwebsockets-dev/README.lws_sul.md.gz
/usr/share/doc/libwebsockets-dev/README.lws_system.md.gz
/usr/share/doc/libwebsockets-dev/README.lwsws.md.gz
/usr/share/doc/libwebsockets-dev/README.md
/usr/share/doc/libwebsockets-dev/README.plugin-acme.md.gz
/usr/share/doc/libwebsockets-dev/README.plugin-sshd-base.md.gz
/usr/share/doc/libwebsockets-dev/README.porting.md
/usr/share/doc/libwebsockets-dev/README.problems.md
/usr/share/doc/libwebsockets-dev/README.release-policy.md.gz
/usr/share/doc/libwebsockets-dev/README.routing.md
/usr/share/doc/libwebsockets-dev/README.tcp_fastopen.md
/usr/share/doc/libwebsockets-dev/README.test-apps.md.gz
/usr/share/doc/libwebsockets-dev/README.tls-sessions.md.gz
/usr/share/doc/libwebsockets-dev/README.udp.md
/usr/share/doc/libwebsockets-dev/README.unix-domain-reverse-proxy.md.gz
/usr/share/doc/libwebsockets-dev/README.vulnerability-reporting.md

Field source: Debian 13 (Trixie) main amd64

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Versions, suites, and repositories

Each row is recorded package-index metadata for one version, architecture, suite, and repository. Names, URLs, and sizes are source-reported; a link is a potentially mutable retrieval location, not an OpenFactory redistribution claim or proof that OpenFactory retained the artifact bytes.

Version	Release	Architecture	Repository	Package size	Installed size	Publisher repository artifact
4.3.5-1+deb13u1	trixie / main	amd64	Debian 13 · main · amd64	568 KiB	2.1 MiB	pool/main/libw/libwebsockets/libwebsockets-dev_4.3.5-1+deb13u1_amd64.deb
4.3.5-1+deb13u1	trixie / main	arm64	Debian 13 · main · arm64	560 KiB	2.1 MiB	pool/main/libw/libwebsockets/libwebsockets-dev_4.3.5-1+deb13u1_arm64.deb

Field source: Debian 13 (Trixie) main amd64

Known vulnerabilities

Matching against OpenFactory catalog package versions is in progress.

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 (2) `4.3.5-1+deb13u1` · amd64 · trixie Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie 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 (2) `4.3.5-1+deb13u1` · amd64 · trixie Affected nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie Affected nvd · libwebsockets · debian · 13
[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)	Affected Details (2) `4.3.5-1+deb13u1` · amd64 · trixie Affected · Fixed: `4.3.5-1+deb13u3` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie Affected · 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)	Affected Details (2) `4.3.5-1+deb13u1` · amd64 · trixie Affected · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie Affected · 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)	Affected Details (2) `4.3.5-1+deb13u1` · amd64 · trixie Affected · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie Affected · Fixed: `4.3.5-1+deb13u2` nvd · libwebsockets · debian · 13

Fixed and unaffected versions (2)

CVE Severity Version impact

CVE	Severity	Version impact
[CVE-2025-11678] Published: Oct 20, 2025, 1:51:17 PM UTC Libwebsockets vulnerabilities	High(7.6)	Fixed Details (2) `4.3.5-1+deb13u1` · amd64 · trixie Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie 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 (2) `4.3.5-1+deb13u1` · amd64 · trixie Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13 `4.3.5-1+deb13u1` · arm64 · trixie Fixed · Fixed: `4.3.5-1+deb13u1` usn · libwebsockets · debian · 13

[CVE-2025-11678]

Published: Oct 20, 2025, 1:51:17 PM UTC

Libwebsockets vulnerabilities

High(7.6)

Fixed

Details (2)

4.3.5-1+deb13u1 · amd64 · trixie
Fixed · Fixed: 4.3.5-1+deb13u1
usn · libwebsockets · debian · 13
4.3.5-1+deb13u1 · arm64 · trixie
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 (2)

4.3.5-1+deb13u1 · amd64 · trixie
Fixed · Fixed: 4.3.5-1+deb13u1
usn · libwebsockets · debian · 13
4.3.5-1+deb13u1 · arm64 · trixie
Fixed · Fixed: 4.3.5-1+deb13u1
usn · libwebsockets · debian · 13

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

[CVE catalog]

Checksums

Repository signatures authenticate metadata. Artifact hashing is recorded separately. Neither establishes package safety.

4.3.5-1+deb13u1 / amd64Observed Sep 1, 2026sha256 c57dd0e787db…92e78a66Source-reported digest

Metadata observed; artifact bytes were not independently fetched or hashed by this catalog import. The digest below is source-reported.

Source-reported digest (sha256): c57dd0e787dbdc4f6cb1f6ebfe1716bee7eb757e20b285742d2286f592e78a66

Verify download

printf '%s  %s\n' 'c57dd0e787dbdc4f6cb1f6ebfe1716bee7eb757e20b285742d2286f592e78a66' 'libwebsockets-dev_4.3.5-1+deb13u1_amd64.deb' | sha256sum --check --strict -

Field source: Debian 13 (Trixie) main amd64

4.3.5-1+deb13u1 / arm64Observed Sep 1, 2026sha256 e57c03ed82ec…739bc8e9Source-reported digest

Metadata observed; artifact bytes were not independently fetched or hashed by this catalog import. The digest below is source-reported.

Source-reported digest (sha256): e57c03ed82ecde275ceeaeeff45155760fa2fa5874fdb483b7488383739bc8e9

Verify download

printf '%s  %s\n' 'e57c03ed82ecde275ceeaeeff45155760fa2fa5874fdb483b7488383739bc8e9' 'libwebsockets-dev_4.3.5-1+deb13u1_arm64.deb' | sha256sum --check --strict -

Field source: Debian 13 (Trixie) main arm64

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