CVE-2025-53643

ADVISORY - github

Summary

The Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request.

Impact

If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or AIOHTTP_NO_EXTENSIONS is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections.

Patch: https://github.com/aio-libs/aiohttp/commit/e8d774f635dc6d1cd3174d0e38891da5de0e2b6a

EPSS Score⁠: 0.00045 (0.138)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-444⁠

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

ADVISORY - github

CWE-444⁠

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Impacted images

Advisories

NIST

CREATED

3 months ago

UPDATED

2 months ago

ADVISORY IDCVE-2025-53643⁠

EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-444⁠

CVSS SCORE

1.7low

GitHub

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY IDGHSA-9548-qrrj-x5pj⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-444⁠

CVSS SCORE

1.7low

Debian

CREATED

3 months ago

UPDATED

2 days ago

ADVISORY IDCVE-2025-53643⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Ubuntu

CREATED

3 months ago

UPDATED

2 months ago

ADVISORY IDCVE-2025-53643⁠

EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

7.5medium

Chainguard

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY ID

CGA-4j8q-668c-5jqg

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Chainguard

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY ID

CGA-9qh3-hfch-g4rf

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Chainguard

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY ID

CGA-f59m-6vrr-qp9v

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Chainguard

CREATED

2 months ago

UPDATED

2 months ago

ADVISORY ID

CGA-m93h-jwc7-8m37

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Chainguard

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY ID

CGA-mqw7-jwx7-849x

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Chainguard

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY ID

CGA-w2fp-6749-5q82

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Chainguard

CREATED

3 months ago

UPDATED

3 months ago

ADVISORY ID

CGA-wg4h-5943-6pf5

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY