CVE-2024-12718VulnerabilityPublished 1 Jul 2025Updated 2 Nov 2026

Red Hat Security Advisory: python3.11 security update

Affects Red Hat python3.11Source GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2024-12718· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium.

Data as of 2 Nov 2026, 02:43 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 1 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
PyPIpython`pkg:pypi/python`Other threats	Affected 3.10.0 – 3.14.0 >=3.12.0 5 affected builds	Fixed in–

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AI-suggested

Red Hat has released updated python3.11 packages that fix these vulnerabilities. Users should apply the security update for python3.11 on Red Hat Enterprise Linux 8 and related products as detailed in the Red Hat advisory RHSA-2025:10026. No additional mitigation steps are indicated beyond applying the official update.

Description

Red Hat has issued a security advisory for python3.11 addressing multiple vulnerabilities related to the tarfile module's extraction filters. These flaws include bypasses that allow modification of file metadata, creation of symlinks, linking outside the extraction directory, and arbitrary writes via a realpath overflow. The update is rated as Important by Red Hat Product Security and affects Red Hat Enterprise Linux 8 and related products. The advisory provides fixes to prevent extraction filter bypasses that could lead to unauthorized file system modifications.

Impact

The vulnerabilities allow bypassing tarfile extraction filters, potentially enabling unauthorized modification of file metadata, creation of symbolic links to arbitrary targets outside the extraction directory, and arbitrary writes via a realpath overflow. This could lead to unauthorized file system changes, which may be leveraged for privilege escalation or other malicious activities. Red Hat rates the security impact as Important.

Summary

This Red Hat security advisory addresses several vulnerabilities in the python3.11 tarfile module, including CVE-2024-12718, CVE-2025-4138, CVE-2025-4330, CVE-2025-4435, and CVE-2025-4517. These issues involve bypassing extraction filters to modify file metadata or create symlinks outside the intended extraction directory, as well as arbitrary writes via a realpath overflow. The vulnerabilities could allow an attacker to manipulate files outside the extraction directory during tarfile extraction. Red Hat has released updated python3.11 packages for Red Hat Enterprise Linux 8 and related variants to address these issues.

CWE-22Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #6OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks…
Implementation · Input Validation
Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174).
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.3.1 (opens in a new tab)
Attack patterns
Path Traversal (opens in a new tab)
Using Slashes and URL Encoding Combined to Bypass Validation Logic (opens in a new tab)
Manipulating Web Input to File System Calls (opens in a new tab)
Using Escaped Slashes in Alternate Encoding (opens in a new tab)
Using Slashes in Alternate Encoding (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-706Use of Incorrectly-Resolved Name or Reference (opens in a new tab)
Class weaknessOWASP Top 10 A01:2021: Broken Access Control (opens in a new tab)
The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.
Attack patterns
Redirect Access to Libraries (opens in a new tab)
Create files with the same name as files protected with a higher classification (opens in a new tab)
Passing Local Filenames to Functions That Expect a URL (opens in a new tab)
DLL Side-Loading (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Nov 2026, 02:43 UTC

WeaknessesCWE-22, CWE-706

Technical details

References

Community reviews

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