{"schema_version":"1.9.0","id":"CVE-2026-34993","published":"2026-06-02T18:29:15.847Z","modified":"2026-09-08T03:46:37.101996044Z","aliases":["GHSA-jg22-mg44-37j8","PYSEC-2026-2104"],"related":["SUSE-SU-2026:22173-1","SUSE-SU-2026:3059-1","SUSE-SU-2026:3207-1","openSUSE-SU-2026:10963-1","openSUSE-SU-2026:21098-1"],"summary":"AIOHTTP Vulnerable to Deserialization of Untrusted Data","details":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/aio-libs/aiohttp","events":[{"introduced":"0"},{"fixed":"edb2724f481ba05ef889accc76bbe0089068e8eb"},{"fixed":"dcf40f30637e8752c76781cf6703b5a236749a00"}],"database_specific":{"cpe":"cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.14.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v3.13.0","v3.12.0","v3.12.0rc1","v3.12.0rc0","v3.12.0b3","v3.12.0b2","v3.12.0b1","v3.12.0b0","v3.11.0","v3.11.0rc2","v3.11.0rc1","v3.11.0rc0","v3.11.0b5","v3.11.0b4","v3.11.0b3","v3.11.0b2","v3.11.0b1","v3.11.0b0","v3.10.0","v3.10.0rc0","v3.10.0b1","v3.10.0b0","v3.9.0","v3.9.0rc0","v3.9.0b1","v3.9.0b0","v3.8.0","v3.7.1","v3.7.0","v3.7.0b1","v3.7.0b0","v3.6.2","v3.6.2a2","v3.6.2a1","v3.6.1","v3.6.1b4","v3.6.1b3","v3.6.0","v3.6.0b0","v3.6.0a12","v3.6.0a11","v3.6.0a10","v3.6.0a9","v3.6.0a8","v3.6.0a7","v3.6.0a6","v3.6.0a5","v3.6.0a4","v3.6.0a3","v3.6.0a2","v3.6.0a1","v3.6.0a0","v3.5.4","v3.5.3","v3.5.2","v3.5.1","v3.5.0","v3.5.0b3","v3.5.0b2","v3.5.0b1","v3.5.0a1","v3.4.0","v3.4.0b2","v3.4.0b1","v3.4.0a3","v3.4.0a0","v3.2.0","v3.1.0","v3.0.0b4","v3.0.0b3","v3.0.0b2","v3.0.0b1","v3.0.0b0","v2.3.0","v2.3.0a4","v2.3.0a3","v2.3.0a2","v2.3.0a1","v2.2.0","v2.1.0","2.0.0","2.0.0rc1","1.3.0","v1.2.0","v1.1.1","v1.1.0","v1.0.1","v1.0.0","v0.22.1","v0.22.0","v0.22.0b6","v0.22.0b5","v0.22.0b4","v0.22.0b3","v0.22.0b2","v0.22.0b1","v0.22.0b0","4v0.21.6","v0.21.0","v0.20.1","v0.20.0","v0.19.0","v0.18.0","v0.17.0","v0.16.3","v0.16.2","v0.16.1","v0.16.0","v0.15.3","0.15.2","v0.15.2","v0.15.1","v0.15.0","v0.14.4","v0.14.3","v0.14.2","v0.14.1","v0.14.0","v0.13.1","v0.13.0","v0.12.0","v0.11.0","v0.10.1","v0.10.0","v0.9.2","v0.9.1","v0.9.0","v0.8.4","v0.8.3","0.8.2","v0.8.1","v0.8.0","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v.0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.5.0","v0.4.2","v0.4.1","v0.4","v0.3","v0.2","v0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34993.json"}}],"references":[{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34993.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24977"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:34456"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:37275"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:42644"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:43038"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50319"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50336"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50340"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50357"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50479"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:54760"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:59135"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:59136"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:59518"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:60520"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:62335"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:62336"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:63327"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:63385"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:63386"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:63387"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-34993"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34993.json"},{"type":"ADVISORY","url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jg22-mg44-37j8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34993"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2484099"},{"type":"FIX","url":"https://github.com/aio-libs/aiohttp/commit/dcf40f30637e8752c76781cf6703b5a236749a00"}],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-502"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34993.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L"}]}