Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L R U H H H 7.3 .0018 7.7 —
AFFECTED Product Versions Fixed aiohttp < 3.14.0 – —
TIMELINE Mar 31 Reserved by GitHub_M Jun 2 Published (CNA: GitHub_M) Aug 14 RESCORED — CVE-2026-34993 (aio-libs aiohttp). CVSS 6.4 → 7.3 (NVD).
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.
| Date | Event | Detail |
|---|---|---|
| March 31, 2026 | Reserved | Reserved by GitHub_M |
| June 2, 2026 | Published | Published (CNA: GitHub_M) |
| August 14, 2026 | RESCORED | RESCORED — CVE-2026-34993 (aio-libs aiohttp). CVSS 6.4 → 7.3 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| aio-libs | aiohttp | — | < 3.14.0 | — |
Authoritative record: CVE-2026-34993 at cve.org
Vendors: aio-libs
Weaknesses: CWE-502
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-34993 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.