CVE-2026-5713
CVE-2026-5713 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.
Key facts
- Severity: Medium (CVSS 4.0 base score 5.3)
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-22311
- Weakness: CWE-121
- Published:
- Last modified:
Description
The "profiling.sampling" module (Python 3.15+) and "asyncio introspection capabilities" (3.14+, "python -m asyncio ps" and "python -m asyncio pstree") features could be used to read and write addresses in a privileged process if that process connected to a malicious or "infected" Python process via the remote debugging feature. This vulnerability requires persistently and repeatedly connecting to the process to be exploited, even after the connecting process crashes with high likelihood due to ASLR.
Frequently asked questions
- What is CVE-2026-5713?
- The "profiling.sampling" module (Python 3.15+) and "asyncio introspection capabilities" (3.14+, "python -m asyncio ps" and "python -m asyncio pstree") features could be used to read and write addresses in a privileged process if that process connected to a malicious or "infected" Python process via the remote debugging feature. This vulnerability requires persistently and repeatedly connecting to the process to be exploited, even after the connecting process crashes with high likelihood due to ASLR.
- How severe is CVE-2026-5713?
- CVE-2026-5713 has a CVSS 4.0 base score of 5.3, rated medium severity.
- Is CVE-2026-5713 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-5713?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-5713 have an EU (EUVD) identifier?
- Yes. CVE-2026-5713 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22311.
- When was CVE-2026-5713 published?
- CVE-2026-5713 was published on 2026-04-14 and last updated on 2026-06-17.
References
- https://github.com/python/cpython/commit/289fd2c97a7e5aecb8b69f94f5e838ccfeee7e67
- https://github.com/python/cpython/commit/316f6265b7f9ca4ffed5346b747475ef1943f35d
- https://github.com/python/cpython/issues/148178
- https://github.com/python/cpython/pull/148187
- https://mail.python.org/archives/list/[email protected]/thread/OG4RHARYSNIE22GGOMVMCRH76L5HKPLM/
- http://www.openwall.com/lists/oss-security/2026/04/15/6
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