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CVE-2025-15366VulnerabilityPublished Updated

SUSE · Security update for python313

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2025-15366· Medium 5.9

Not known to be exploited · CVSS 5.9 Medium · fixed in SUSE package updates : update SUSE CPython when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.15.0a6, 3.14.7, 3.13.15
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade CPython to 3.15.0a6, 3.14.7 or 3.13.15.

Affected software

ProductAffectedFixed in
Python Software FoundationCPythonAffected
  • >=3.15.0a1 <3.15.0a6
Fixed in
  • 3.15.0a6
Python Software FoundationCPythonAffected
  • >=3.14.0 <3.14.7
Fixed in
  • 3.14.7
Python Software FoundationCPythonAffected
  • <3.13.15
Fixed in
  • 3.13.15
GitHubCPythonpkg:github/CPythonOther threatsAffected
  • <3.13.15
  • >=3.14.0 <3.14.7
  • >=3.15.0a1 <3.15.0a6
Fixed in
  • 3.13.15
  • 3.14.7
  • 3.15.0a6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released updated python3 packages in Hardened Images RPMs that address this vulnerability. Users should apply these updates as per Red Hat's advisory instructions. Additionally, ensure that no data passed to the imaplib module contains newline or carriage return characters to mitigate the vulnerability. Patch status is confirmed by Red Hat advisory; a fix is available.

Description

This update for python313 fixes the following issues: - CVE-2025-15366: user-controlled command can allow additional commands injected using newlines (bsc#1257044). - CVE-2025-15367: control characters may allow the injection of additional commands (bsc#1257041). - CVE-2026-0864: improper handling of line-ending characters can lead to configuration file injection when the `configparser` module is used (bsc#1269066). - CVE-2026-4360: in the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks (bsc#1269959). - CVE-2026-8328: `ftpcp()` does not use actual peer address and trusts server-supplied PASV host address (bsc#1265268). - CVE-2026-11940: tarfile extraction filter bypass via a crafted archive allows escaping the destination directory and enables arbitrary file reads and writes (bsc#1268977). - CVE-2026-11972: infinite loop due to improper EOF handling in the tarfile module streaming mode can lead to DoS (bsc#1269788). - CVE-2026-15308: Incremental HTMLParser allows CPU-exhaustion DoS via repeated unterminated markup declarations (bsc#1271192).

References

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