Unrated severityNVD Advisory· Published Jun 2, 2023· Updated Dec 18, 2025
Content Security Policy wasn't being correctly applied to WebSockets in WebWorkers
CVE-2023-23602
Description
A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.
Affected products
36- osv-coords33 versionspkg:rpm/almalinux/firefoxpkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/mozjs102&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP4pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP4
< 102.7.0-1.el9_1.alma+ 32 more
- (no CPE)range: < 102.7.0-1.el9_1.alma
- (no CPE)range: < 102.7.1-1.el8_7.alma
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 109.0-1.1
- (no CPE)range: < 102.7.1-150200.8.102.1
- (no CPE)range: < 102.7.1-1.1
- (no CPE)range: < 102.7.0-1.1
- (no CPE)range: < 102.7.0-150000.150.71.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150000.150.71.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-150000.150.71.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-150000.150.71.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-150200.152.73.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.0-112.145.1
- (no CPE)range: < 102.7.1-150200.8.102.1
- (no CPE)range: < 102.7.1-150200.8.102.1
- Range: unspecified
- Range: unspecified
- Range: unspecified
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4News mentions
0No linked articles in our index yet.