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Bug#1126783: pypy3: CVE-2025-13836

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Source: pypy3
Version: 7.3.20+dfsg-4
Severity: important
Tags: security upstream
Forwarded: https://github.com/python/cpython/issues/119451
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for pypy3.

CVE-2025-13836[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-13836
    https://www.cve.org/CVERecord?id=CVE-2025-13836
[1] https://github.com/python/cpython/issues/119451

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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Bug#1126783: pypy3: CVE-2025-13836 Salvatore Bonaccorso <carnil@debian.org> - 2026-02-01 11:30 +0100

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