Unrated severityNVD Advisory· Published Sep 11, 2023· Updated Dec 18, 2025
Browsing Context potentially not cleared when closing Private Window
CVE-2023-4583
Description
When checking if the Browsing Context had been discarded in HttpBaseChannel, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
37<115.2+ 3 more
- (no CPE)range: <115.2
- (no CPE)range: <117
- (no CPE)range: unspecified
- (no CPE)range: unspecified
<115.2+ 1 more
- (no CPE)range: <115.2
- (no CPE)range: unspecified
- osv-coords31 versionspkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg: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%20Module%20for%20Desktop%20Applications%2015%20SP5pkg: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%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/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP4pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP4pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5
< 102.15.0-1.el8_8.alma+ 30 more
- (no CPE)range: < 102.15.0-1.el8_8.alma
- (no CPE)range: < 102.15.0-1.el9_2.alma
- (no CPE)range: < 102.15.0-1.el8_8.alma
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 117.0-1.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.0-1.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150000.150.100.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-112.176.1
- (no CPE)range: < 115.2.0-150000.150.100.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-112.176.1
- (no CPE)range: < 115.2.0-150000.150.100.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-112.176.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
Patches
Vulnerability mechanics
References
4News mentions
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