CVE Explorer
CVE-2026-34514
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the content_type parameter in aiohttp could use this to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"aiohttp","vendor":"aio-libs","versions":[{"status":"affected","version":"< 3.13.4"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:8c9241dd90434f320624bd42fe28b5dccda742a507bbad67f31d90ed4c17330b · sha256:011d9a7b4e24d215… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":2.7,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:8c9241dd90434f320624bd42fe28b5dccda742a507bbad67f31d90ed4c17330b · sha256:011d9a7b4e24d215… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-113","description":"CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:8c9241dd90434f320624bd42fe28b5dccda742a507bbad67f31d90ed4c17330b · sha256:011d9a7b4e24d215… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/aio-libs/aiohttp/commit/9a6ada97e2c6cf1ce31727c6c9fcea17c21f6f06","tags":["x_refsource_MISC"],"url":"https://github.com/aio-libs/aiohttp/commit/9a6ada97e2c6cf1ce31727c6c9fcea17c21f6f06"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8c9241dd90434f320624bd42fe28b5dccda742a507bbad67f31d90ed4c17330b · sha256:011d9a7b4e24d215… · /containers/cna/references/1
{"name":"https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4","tags":["x_refsource_MISC"],"url":"https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8c9241dd90434f320624bd42fe28b5dccda742a507bbad67f31d90ed4c17330b · sha256:011d9a7b4e24d215… · /containers/cna/references/2
{"name":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2vrm-gr82-f7m5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2vrm-gr82-f7m5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8c9241dd90434f320624bd42fe28b5dccda742a507bbad67f31d90ed4c17330b · sha256:011d9a7b4e24d215… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.