Packages / Debian 12 (Bookworm) / libdevel / libwebsockets-dev

Package: libwebsockets-dev (4.1.6-3)

lightweight C websockets library - development files

Other Packages Related to libwebsockets-dev:

dep: [libwebsockets17] (= 4.1.6-3)
lightweight C websockets library
dep: [libwebsockets-evlib-ev] (= 4.1.6-3)
lightweight C websockets library
dep: [libwebsockets-evlib-uv] (= 4.1.6-3)
lightweight C websockets library
dep: [libwebsockets-evlib-glib] (= 4.1.6-3)
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	450 KiB	1.7 MiB	list of files	Download
arm64	442 KiB	1.7 MiB	list of files	Download

Package file paths (136)

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-callbacks.h
/usr/include/libwebsockets/lws-cgi.h
/usr/include/libwebsockets/lws-client.h
/usr/include/libwebsockets/lws-context-vhost.h
/usr/include/libwebsockets/lws-dbus.h
/usr/include/libwebsockets/lws-detailed-latency.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-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-led.h
/usr/include/libwebsockets/lws-lejp.h
/usr/include/libwebsockets/lws-logs.h
/usr/include/libwebsockets/lws-lwsac.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-stats.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-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.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
/usr/share/doc/libwebsockets-dev/README.debugging.md
/usr/share/doc/libwebsockets-dev/README.detailed-latency.md
/usr/share/doc/libwebsockets-dev/README.esp32.md
/usr/share/doc/libwebsockets-dev/README.event-libs.md
/usr/share/doc/libwebsockets-dev/README.h2-long-poll.md
/usr/share/doc/libwebsockets-dev/README.http-fallback.md.gz
/usr/share/doc/libwebsockets-dev/README.jwt.md.gz
/usr/share/doc/libwebsockets-dev/README.lws_dll.md
/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.gz
/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.test-apps.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 12 (Bookworm) 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
4.1.6-3	bookworm / main	amd64	Debian 12 · main · amd64	450 KiB	1.7 MiB	pool/main/libw/libwebsockets/libwebsockets-dev_4.1.6-3_amd64.deb
4.1.6-3	bookworm / main	arm64	Debian 12 · main · arm64	442 KiB	1.7 MiB	pool/main/libw/libwebsockets/libwebsockets-dev_4.1.6-3_arm64.deb

Field source: Debian 12 (Bookworm) 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) `4.1.6-3` · amd64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12 `4.1.6-3` · arm64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12
[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) `4.1.6-3` · amd64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12 `4.1.6-3` · arm64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12
[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) `4.1.6-3` · amd64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12 `4.1.6-3` · arm64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12
[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) `4.1.6-3` · amd64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12 `4.1.6-3` · arm64 · bookworm Affected nvd · libwebsockets · debian · bookworm; nvd · libwebsockets · debian · 12
[CVE-2025-11678] Published: Oct 20, 2025, 1:51:17 PM UTC Libwebsockets vulnerabilities	High(7.6)	Affected Details (2) `4.1.6-3` · amd64 · bookworm Affected usn · libwebsockets · debian · bookworm; usn · libwebsockets · debian · 12 `4.1.6-3` · arm64 · bookworm Affected usn · libwebsockets · debian · bookworm; usn · libwebsockets · debian · 12
[CVE-2025-11677] Published: Oct 20, 2025, 1:41:10 PM UTC Libwebsockets vulnerabilities	Medium(6.3)	Affected Details (2) `4.1.6-3` · amd64 · bookworm Affected usn · libwebsockets · debian · bookworm; usn · libwebsockets · debian · 12 `4.1.6-3` · arm64 · bookworm Affected usn · libwebsockets · debian · bookworm; usn · libwebsockets · debian · 12

Fixed and unaffected versions (3)

CVE Severity Version impact

CVE	Severity	Version impact
[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)	Not affected Details (2) `4.1.6-3` · amd64 · bookworm Not affected nvd · libwebsockets · debian · bookworm `4.1.6-3` · arm64 · bookworm Not affected nvd · libwebsockets · debian · bookworm
[CVE-2025-11680] Published: Oct 20, 2025, 2:04:06 PM UTC Out-of-bounds Write in unfilter_scanline in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to write past a heap allocated b	Medium(5.9)	Not affected Details (2) `4.1.6-3` · amd64 · bookworm Not affected nvd · libwebsockets · debian · bookworm `4.1.6-3` · arm64 · bookworm Not affected nvd · libwebsockets · debian · bookworm
[CVE-2025-11679] Published: Oct 20, 2025, 1:58:31 PM UTC Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocat	Medium(5.9)	Not affected Details (2) `4.1.6-3` · amd64 · bookworm Not affected nvd · libwebsockets · debian · bookworm `4.1.6-3` · arm64 · bookworm Not affected nvd · libwebsockets · debian · bookworm

[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)

Not affected

Details (2)

4.1.6-3 · amd64 · bookworm
Not affected
nvd · libwebsockets · debian · bookworm
4.1.6-3 · arm64 · bookworm
Not affected
nvd · libwebsockets · debian · bookworm

[CVE-2025-11680]

Published: Oct 20, 2025, 2:04:06 PM UTC

Out-of-bounds Write in unfilter_scanline in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to write past a heap allocated b

Medium(5.9)

Not affected

Details (2)

4.1.6-3 · amd64 · bookworm
Not affected
nvd · libwebsockets · debian · bookworm
4.1.6-3 · arm64 · bookworm
Not affected
nvd · libwebsockets · debian · bookworm

[CVE-2025-11679]

Published: Oct 20, 2025, 1:58:31 PM UTC

Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocat

Medium(5.9)

Not affected

Details (2)

4.1.6-3 · amd64 · bookworm
Not affected
nvd · libwebsockets · debian · bookworm
4.1.6-3 · arm64 · bookworm
Not affected
nvd · libwebsockets · debian · bookworm

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.

4.1.6-3 / amd64Observed Sep 1, 2026sha256 575f7b74a552…ac5398e9Source-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): 575f7b74a5525775c6498d99f060c09f881a4d048a10a6f336389a0bac5398e9

Verify download

printf '%s  %s\n' '575f7b74a5525775c6498d99f060c09f881a4d048a10a6f336389a0bac5398e9' 'libwebsockets-dev_4.1.6-3_amd64.deb' | sha256sum --check --strict -

Field source: Debian 12 (Bookworm) main amd64

4.1.6-3 / arm64Observed Sep 1, 2026sha256 45b9685368ad…afe415dcSource-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): 45b9685368ad818b0a0a504bb09fffd5b036b6de8c68433764819c8dafe415dc

Verify download

printf '%s  %s\n' '45b9685368ad818b0a0a504bb09fffd5b036b6de8c68433764819c8dafe415dc' 'libwebsockets-dev_4.1.6-3_arm64.deb' | sha256sum --check --strict -

Field source: Debian 12 (Bookworm) main arm64

Sources

Debian 12 (Bookworm) main amd64Sep 1, 2026
Authoritative source; repository metadata signature verified
Signature evidence
bookworm-main-amd64:9e0b5aabb2465b3d2e7a7fe27f9913846277833f7a2826e7767acccff5b588c5
Repository-signature verification record
Signed object
https://deb.debian.org/debian/dists/bookworm/InRelease
Signed-object SHA-256
77737fa4b34f2693e982cc9ee35736816c35a7778fc2d326cc1bbf5b301fe1aa
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
9e0b5aabb2465b3d2e7a7fe27f9913846277833f7a2826e7767acccff5b588c5
Observed SHA-256
9e0b5aabb2465b3d2e7a7fe27f9913846277833f7a2826e7767acccff5b588c5
Result
match verified
Debian 12 (Bookworm) main arm64Sep 1, 2026
Authoritative source; repository metadata signature verified
Signature evidence
bookworm-main-arm64:2ddb1737692e8c45c53e8d57c0ce4cd21c78c5703b830c3226b1423566a06c00
Repository-signature verification record
Signed object
https://deb.debian.org/debian/dists/bookworm/InRelease
Signed-object SHA-256
77737fa4b34f2693e982cc9ee35736816c35a7778fc2d326cc1bbf5b301fe1aa
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
2ddb1737692e8c45c53e8d57c0ce4cd21c78c5703b830c3226b1423566a06c00
Observed SHA-256
2ddb1737692e8c45c53e8d57c0ce4cd21c78c5703b830c3226b1423566a06c00
Result
match verified