| Name | CVE-2025-13836 |
| Description | When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python3.11 (PTS) | bookworm | 3.11.2-6+deb12u6 | vulnerable |
| bookworm (security) | 3.11.2-6+deb12u3 | vulnerable | |
| python3.13 (PTS) | trixie | 3.13.5-2 | vulnerable |
| forky, sid | 3.13.11-1 | fixed | |
| python3.14 (PTS) | forky, sid | 3.14.2-1 | fixed |
| python3.9 (PTS) | bullseye | 3.9.2-1 | vulnerable |
| bullseye (security) | 3.9.2-1+deb11u3 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python3.11 | source | (unstable) | (unfixed) | |||
| python3.13 | source | (unstable) | 3.13.11-1 | |||
| python3.14 | source | (unstable) | 3.14.2-1 | |||
| python3.9 | source | (unstable) | (unfixed) |
[trixie] - python3.13 <no-dsa> (Minor issue)
[bookworm] - python3.11 <no-dsa> (Minor issue)
[bullseye] - python3.9 <postponed> (Minor issue)
https://github.com/python/cpython/issues/119451
https://github.com/python/cpython/pull/119454
https://github.com/python/cpython/commit/5a4c4a033a4a54481be6870aa1896fad732555b5 (main)
https://github.com/python/cpython/commit/4ce27904b597c77d74dd93f2c912676021a99155 (v3.14.1)
https://github.com/python/cpython/commit/289f29b0fe38baf2d7cb5854f4bb573cc34a6a15 (v3.13.11)