{"id":"CVE-2023-41335","aliases":["ALPINE-CVE-2023-41335","DEBIAN-CVE-2023-41335","EUVD-2023-0134","GHSA-4f74-84v3-j9q5","PYSEC-2023-185","UBUNTU-CVE-2023-41335","USN-7444-1","openSUSE-SU-2024:13270-1"],"status":"published","title":"Temporary storage of plaintext passwords during password changes in matrix synapse","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00387,"percentile":0.33051,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-312"],"published":"2023-09-26T18:55:24Z","modified":"2026-11-03T06:32:59Z","fixes":[{"ecosystem":"PyPI","package":"matrix-synapse","fixed_in":["1.93.0"],"sources":["ghsa","osv"]},{"ecosystem":"Alpine:v3.18","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"synapse","fixed_in":["1.93.0-r0"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"matrix-synapse","fixed_in":["1.53.0-1ubuntu0.1~esm2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0-r0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0"}]}],"versions":["1.66.0","1.67.0","1.67.0rc1","1.68.0","1.68.0rc1","1.68.0rc2","1.69.0","1.69.0rc1","1.69.0rc2","1.69.0rc4","1.70.0","1.70.0rc1","1.70.0rc2","1.70.1","1.71.0","1.71.0rc1","1.71.0rc2","1.72.0","1.72.0rc1","1.73.0","1.73.0rc2","1.74.0","1.74.0rc1","1.75.0","1.75.0rc1","1.75.0rc2","1.76.0","1.76.0rc1","1.76.0rc2","1.77.0","1.77.0rc1","1.77.0rc2","1.78.0","1.78.0rc1","1.79.0","1.79.0rc1","1.79.0rc2","1.80.0","1.80.0rc1","1.80.0rc2","1.81.0","1.81.0rc1","1.81.0rc2","1.82.0","1.82.0rc1","1.83.0","1.83.0rc1","1.84.0","1.84.0rc1","1.84.1","1.85.0","1.85.0rc1","1.85.0rc2","1.85.1","1.85.2","1.86.0","1.86.0rc2","1.87.0","1.87.0rc1","1.88.0","1.88.0rc1","1.89.0","1.89.0rc1","1.90.0","1.90.0rc1","1.91.0","1.91.0rc1","1.91.1","1.91.2","1.92.0rc1","1.92.1","1.92.2","1.92.3","1.93.0rc1"]},{"source":"osv","ecosystem":"PyPI","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.66.0"},{"fixed":"1.93.0"}]}],"versions":["1.66.0","1.67.0","1.67.0rc1","1.68.0","1.68.0rc1","1.68.0rc2","1.69.0","1.69.0rc1","1.69.0rc2","1.69.0rc4","1.70.0","1.70.0rc1","1.70.0rc2","1.70.1","1.71.0","1.71.0rc1","1.71.0rc2","1.72.0","1.72.0rc1","1.73.0","1.73.0rc2","1.74.0","1.74.0rc1","1.75.0","1.75.0rc1","1.75.0rc2","1.76.0","1.76.0rc1","1.76.0rc2","1.77.0","1.77.0rc1","1.77.0rc2","1.78.0","1.78.0rc1","1.79.0","1.79.0rc1","1.79.0rc2","1.80.0","1.80.0rc1","1.80.0rc2","1.81.0","1.81.0rc1","1.81.0rc2","1.82.0","1.82.0rc1","1.83.0","1.83.0rc1","1.84.0","1.84.0rc1","1.84.1","1.85.0","1.85.0rc1","1.85.0rc2","1.85.1","1.85.2","1.86.0","1.86.0rc2","1.87.0","1.87.0rc1","1.88.0","1.88.0rc1","1.89.0","1.89.0rc1","1.90.0","1.90.0rc1","1.91.0","1.91.0rc1","1.91.1","1.91.2","1.92.0rc1","1.92.1","1.92.2","1.92.3","1.93.0rc1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.53.0-1ubuntu0.1~esm2"}]}],"versions":["1.39.0-1","1.47.0-2","1.47.1-1","1.48.0-1","1.49.0-1","1.49.2-1","1.50.1-1","1.50.2-1","1.51.0-1","1.52.0-1","1.53.0-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24.0+dfsg-1ubuntu0.1~esm4"}]}],"versions":["0.19.2+dfsg-6","0.24.0+dfsg-1","0.24.0+dfsg-1ubuntu0.1~esm1"],"bundled":8},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0-1ubuntu0.1~esm2"}]}],"versions":["1.3.0-1","1.4.0-1","1.5.0-1","1.5.1-1","1.6.0-1","1.6.1-1","1.7.0-2","1.7.1-1","1.7.2-1","1.7.3-1","1.8.0-1","1.9.0-1","1.9.1-1","1.10.0-1","1.10.0-2","1.11.0-1"],"bundled":8},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.53.0-1ubuntu0.1~esm2"}]}],"versions":["1.39.0-1","1.47.0-2","1.47.1-1","1.48.0-1","1.49.0-1","1.49.2-1","1.50.1-1","1.50.2-1","1.51.0-1","1.52.0-1","1.53.0-1"],"bundled":8},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"matrix-synapse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.93.0-1.1"}]}],"bundled":3}],"products":[{"vendor":"element-hq","product":"synapse"},{"vendor":"fedoraproject","product":"fedora"},{"vendor":"matrix","product":"synapse"},{"vendor":"matrix-org","product":"synapse"}],"references":[{"url":"https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/matrix-org/synapse/pull/16272","tags":["x_refsource_MISC","x_transferred","Patch","fix","web","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO/","tags":["x_transferred","Mailing List","Release Notes","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4/","tags":["x_transferred","Mailing List","Release Notes","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/","tags":["x_transferred","web"]},{"url":"https://security.gentoo.org/glsa/202401-12","tags":["x_transferred","advisory","web"]},{"url":"https://github.com/matrix-org/synapse/pull/13188","tags":["web"]},{"url":"https://github.com/matrix-org/synapse/commit/69b74d9330e42fc91a9c7423d00a06cd6d3732bf","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-41335","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-185.yaml","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4f74-84v3-j9q5"},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-41335","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/41xxx/CVE-2023-41335.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-41335","tags":["advisory"]},{"url":"https://github.com/matrix-org/synapse","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2023-41335","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-41335","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7444-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-39335","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-39374","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-32683","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-42453","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-43796","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-31208","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-53863","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-41335","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-42453","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-4863","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-41335","title":"Temporary storage of plaintext passwords during password changes in matrix synapse","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-26T20:51:29.741Z","modified":"2025-02-13T17:09:01.354Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:35:19.217111Z"}],"euvd":[{"id":"EUVD-2023-0134","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-26T20:51:29Z","modified":"2025-02-13T17:09:01Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T00:03:49.098775Z"}],"ghsa":[{"id":"GHSA-4f74-84v3-j9q5","title":"matrix-synapse vulnerable to temporary storage of plaintext passwords during password changes","description":"### Impact\n\nWhen users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration.\n\nThese temporarily stored passwords are automatically erased after a 48-hour window.\n\n### Patches\nhttps://github.com/matrix-org/synapse/pull/16272\n\n### References\n\nThis bug was due to a regression in https://github.com/matrix-org/synapse/pull/13188.","status":"published","published":"2023-09-26T18:55:24Z","modified":"2024-09-30T20:42:57Z","cvss":[{"version":"4.0","score":2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:38:07.852618Z"}],"nvd":[{"id":"CVE-2023-41335","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-27T15:19:30.283Z","modified":"2026-06-17T06:21:51.08Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:08:31.699785Z"}],"osv":[{"id":"ALPINE-CVE-2023-41335","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-27T15:19:30.283Z","modified":"2026-11-03T06:32:59.192482948Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T07:16:09.603409Z"},{"id":"CVE-2023-41335","title":"Temporary storage of plaintext passwords during password changes in matrix synapse","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-26T20:51:29.741Z","modified":"2026-10-28T02:30:49.180230186Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T15:44:33.244128Z"},{"id":"DEBIAN-CVE-2023-41335","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"withdrawn","published":"2023-09-27T15:19:30.283Z","modified":"2026-08-11T20:49:50.293103449Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T15:45:39.980321Z"},{"id":"GHSA-4f74-84v3-j9q5","title":"matrix-synapse vulnerable to temporary storage of plaintext passwords during password changes","description":"### Impact\n\nWhen users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration.\n\nThese temporarily stored passwords are automatically erased after a 48-hour window.\n\n### Patches\nhttps://github.com/matrix-org/synapse/pull/16272\n\n### References\n\nThis bug was due to a regression in https://github.com/matrix-org/synapse/pull/13188.","status":"published","published":"2023-09-26T18:55:24Z","modified":"2026-09-10T03:50:03.101707044Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low"},{"version":"4.0","score":2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T15:46:36.782754Z"},{"id":"PYSEC-2023-185","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-27T15:19:00Z","modified":"2023-11-08T04:13:25.665748Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T15:52:53.837392Z"},{"id":"UBUNTU-CVE-2023-41335","description":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-09-27T15:19:00Z","modified":"2026-02-04T03:19:57.545947Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"low"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T16:54:22.741943Z"},{"id":"openSUSE-SU-2024:13270-1","title":"matrix-synapse-1.93.0-1.1 on GA media","description":"These are all security issues fixed in the matrix-synapse-1.93.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:24:22.061902Z","updated_at":"2026-11-02T16:58:36.025801Z"},{"id":"USN-7444-1","title":"matrix-synapse vulnerabilities","description":"It was discovered that Synapse network policies could be bypassed via\nspecially crafted URLs. An attacker could possibly use this issue to\nbypass authentication mechanisms. (CVE-2023-32683)\n\nIt was discovered that Synapse exposed cached device information. An\nattacker could possibly use this issue to gain access to sensitive\ninformation. (CVE-2023-43796)\n\nIt was discovered that Synapse could be tricked into rejecting state\nchanges in rooms. An attacker could possibly use this issue to cause\nSynapse to stop functioning properly, resulting in a denial of service.\nThis issue was only fixed in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.\n(CVE-2022-39374)\n\nIt was discovered that Synapse stored user credentials in a server's\ndatabase temporarily. An attacker could possibly use this issue to\ngain access to sensitive information. This issue was only fixed in\nUbuntu 22.04 LTS. (CVE-2023-41335)\n\nIt was discovered that Synapse could incorrectly respond to server\nauthorization events. An attacker could possibly use this issue to\nbypass authentication mechanisms. This issue was only fixed in Ubuntu\n22.04 LTS. (CVE-2022-39335)\n\nIt was discovered that Synapse could be manipulated to mark messages\nas read when they had not been viewed. An attacker could possibly use\nthis issue to perform repudiation-based attacks. This issue was only\nfixed in Ubuntu 22.04 LTS. (CVE-2023-42453)\n\nIt was discovered that Synapse had several memory-related issues. An\nattacker could possibly use this issue to cause Synapse to crash,\nresulting in a denial of service. This issue was only fixed in Ubuntu\n22.04 LTS. (CVE-2024-31208)\n\nIt was discovered that Synapse could run external tools due to a\nunchecked thumbnail rendering routine. An attacker could possibly use\nthis issue to cause Synapse to crash, resulting in a denial of service,\nor execute arbitrary code. This issue was only fixed in Ubuntu\n22.04 LTS. (CVE-2024-53863)\n","status":"published","published":"2025-04-22T17:24:26Z","modified":"2026-04-27T18:02:27.885669037Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}