{"id":"CVE-2018-1000814","aliases":["EUVD-2018-0001","GHSA-mr4x-c4v9-x729","PYSEC-2018-35"],"status":"published","title":"aiohttp-session creates non-expiring sessions","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00965,"percentile":0.62121,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-613"],"published":"2018-12-20T15:00:00Z","modified":"2026-10-20T10:50:15Z","fixes":[{"ecosystem":"PyPI","package":"aiohttp-session","fixed_in":["2.7.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"aiohttp-session","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.6.0"},{"fixed":"2.7.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"aiohttp-session","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0"}]}],"versions":["0.0.1","0.1.0","0.1.1","0.1.2","0.2.0","0.3.0","0.4.0","0.5.0","0.7.0","0.7.1","0.8.0","1.0.0","1.0.1","1.1.0","1.2.0","1.2.1","2.0.0","2.0.1","2.1.0","2.2.0","2.3.0","2.4.0","2.5.1","2.6.0"]},{"source":"osv","ecosystem":"PyPI","package":"aiohttp-session","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0"}]}],"versions":["0.0.1","0.1.0","0.1.1","0.1.2","0.2.0","0.3.0","0.4.0","0.5.0","0.7.0","0.7.1","0.8.0","1.0.0","1.0.1","1.1.0","1.2.0","1.2.1","2.0.0","2.0.1","2.1.0","2.2.0","2.3.0","2.4.0","2.5.1","2.6.0"]}],"products":[{"vendor":"aio-libs","product":"aiohttp_session"}],"references":[{"url":"https://github.com/aio-libs/aiohttp-session/pull/331","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/aio-libs/aiohttp-session/issues/325","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000814","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mr4x-c4v9-x729","tags":["advisory"]},{"url":"https://github.com/aio-libs/aiohttp-session/commit/1b356f01bbab57d041c9a75bacd72fbbf8524728","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp-session/PYSEC-2018-35.yaml","tags":["web"]},{"url":"https://github.com/aio-libs/aiohttp-session","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-1000814","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T15:00:00Z","modified":"2024-09-17T01:01:46.072Z","updated_at":"2026-11-02T14:35:10.685174Z"}],"euvd":[{"id":"EUVD-2018-0001","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T15:00:00Z","modified":"2024-09-17T01:01:46Z","updated_at":"2026-11-03T00:28:53.686001Z"}],"ghsa":[{"id":"GHSA-mr4x-c4v9-x729","title":"aiohttp-session creates non-expiring sessions","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T22:01:46Z","modified":"2025-03-14T20:26:13Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:38:34.992855Z"}],"nvd":[{"id":"CVE-2018-1000814","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T15:29:00.487Z","modified":"2026-06-17T01:33:06.157Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:04:50.99633Z"}],"osv":[{"id":"CVE-2018-1000814","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T15:29:00.487Z","modified":"2026-11-10T02:30:44.218451786Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-11T11:06:14.316999Z"},{"id":"GHSA-mr4x-c4v9-x729","title":"aiohttp-session creates non-expiring sessions","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T22:01:46Z","modified":"2025-03-14T20:33:16.010498Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T15:46:52.170928Z"},{"id":"PYSEC-2018-35","description":"aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.","status":"published","published":"2018-12-20T15:29:00Z","modified":"2023-11-08T03:59:40.317597Z","updated_at":"2026-11-02T15:52:51.645172Z"}]}}