CVE-2024-27306

Impact

### Summary A XSS vulnerability exists on index pages for static file handling. ### Details When using `web.static(..., show_index=True)`, the resulting index pages do not escape file names. If users can upload files with arbitrary filenames to the static directory, the server is vulnerable to XSS attacks. ### Workaround We have always recommended using a reverse proxy server (e.g. nginx) for serving static files. Users following the recommendation are unaffected. Other users can disable `show_index` if unable to upgrade. ----- Patch: https://github.com/aio-libs/aiohttp/pull/8319/files

Affected packages

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• GitHub advisory
• https://github.com/aio-libs/aiohttp/commit/28335525d1eac015a7e7584137678cbb6ff19397
• https://github.com/aio-libs/aiohttp/pull/8319
• https://github.com/aio-libs/aiohttp/security/advisories/GHSA-7gpw-8wmc-pm8g
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2EXRGTN2WG7VZLUZ7WOXU5GQJKCPPHKP/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWEI6NIHZ3G7DURDZVMRK7ZEFC2BTD3U/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZIVBMPEY7WWOFMC3CWXFBRQPFECV4SW3/
• https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html
• https://github.com/advisories/GHSA-7gpw-8wmc-pm8g
• https://github.com/aio-libs/aiohttp/pull/8319/files
• https://nvd.nist.gov/vuln/detail/CVE-2024-27306
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2EXRGTN2WG7VZLUZ7WOXU5GQJKCPPHKP
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWEI6NIHZ3G7DURDZVMRK7ZEFC2BTD3U
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZIVBMPEY7WWOFMC3CWXFBRQPFECV4SW3