CVE-2025-69226

AIOHTTP allows for a brute-force leak of internal static ﬁlepath components

At a glance

Severity: MEDIUM 6.3
EPSS: EPSS 0.37 % · percentile 30 (2026-10-27)
State: PUBLISHED
Published: 2026-01-05
Updated: 2026-01-06
Assigner: GitHub_M
NVD status: Analyzed

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below enable an attacker to ascertain the existence of absolute path components through the path normalization logic for static files meant to prevent path traversal. If an application uses web.static() (not recommended for production deployments), it may be possible for an attacker to ascertain the existence of path components. This issue is fixed in version 3.13.3.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.3	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	GitHub_M
CVSS 4.0	MEDIUM 6.3	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	MEDIUM 5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

Advisories

GHSA-54jq-c3m8-4m76 — AIOHTTP vulnerable to brute-force leak of internal static ﬁle path components
PYSEC-2026-1097 — AIOHTTP vulnerable to brute-force leak of internal static ﬁle path components

European references

ENISA EUVD · EUVD-2026-1046
GCVE · GCVE-0-2025-69226

CERT-FR advisories

CERTFR-2026-AVI-0627 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
CERTFR-2026-AVI-0281 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
CERTFR-2026-AVI-0224 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:* < 3.13.3

Affected products

Product	Versions
aio-libs · aiohttp	affected < 3.13.3

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD