Vulnerability-Lookup

RHSA-2026:48788

Vulnerability from csaf_redhat - Published: 2026-07-30 13:43 - Updated: 2026-11-07 05:56

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Moderate

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: python-pip: * python-pip-wheel-26.2-0.1.hum1 (noarch) * python3-pip-26.2-0.1.hum1 (noarch) * python-pip-26.2-0.1.hum1.src (src) Security Fix(es): python-pip: * CVE-2026-13346

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-6357

A flaw was found in pip. Prior to version 26.1, pip's self-update check functionality would execute after installing wheel packages. This process involved importing newly installed Python modules. A malicious actor could craft a specially designed wheel package that, when installed, could lead to the execution of arbitrary code or information disclosure due to the premature import of its modules during the self-update check.

5.8 (Medium)


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

CWE-94 - Improper Control of Generation of Code

Affected products

Fixed 5 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:python-pip-0:26.2-0.1.hum1@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:python-pip-wheel-0:26.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:python-pip-wheel-0:26.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:python3-pip-0:26.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:python3-pip-0:26.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2026-13346

A flaw was found in pip. When processing doubly-encoded package URLs from malicious package indexes, pip incorrectly handles the file paths. A remote attacker could exploit this by convincing a user to download or install a package from such an index. This could allow for files to be installed to arbitrary locations on the system, potentially leading to system compromise. This vulnerability primarily affects users utilizing the `pip download` command with the `--only-binary` option.

5.9 (Medium)


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

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory

Affected products

Fixed 5 products, the same list as for CVE-2026-6357

Threats

Impact Moderate

References

18 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:48788	self
https://access.redhat.com/security/cve/CVE-2026-13346	external
https://access.redhat.com/security/updates/classi…	external
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-6357	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-6357	self
https://bugzilla.redhat.com/show_bug.cgi?id=2463234	external
https://www.cve.org/CVERecord?id=CVE-2026-6357	external
https://nvd.nist.gov/vuln/detail/CVE-2026-6357	external
https://github.com/pypa/pip/pull/13923	external
https://ichard26.github.io/blog/2026/04/whats-new…	external
https://access.redhat.com/security/cve/CVE-2026-13346	self
https://bugzilla.redhat.com/show_bug.cgi?id=2508514	external
https://www.cve.org/CVERecord?id=CVE-2026-13346	external
https://nvd.nist.gov/vuln/detail/CVE-2026-13346	external
https://github.com/pypa/pip/pull/14110	external
https://mail.python.org/archives/list/security-an…	external

JSON

To clipboard

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          "text": "pip: pip: Arbitrary file installation via malicious package indexes",
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          "text": "Note that this vulnerability only materially impacts users running pip download with the --only-binary option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.",
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          "summary": "https://github.com/pypa/pip/pull/14110",
          "url": "https://github.com/pypa/pip/pull/14110"
        },
        {
          "category": "external",
          "summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/",
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/"
        }
      ],
      "release_date": "2026-07-29T18:33:50.820000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-30T13:43:08+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:python-pip-0:26.2-0.1.hum1@src",
            "Red Hat Hardened Images:python-pip-wheel-0:26.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms",
            "Red Hat Hardened Images:python-pip-wheel-0:26.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms",
            "Red Hat Hardened Images:python3-pip-0:26.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms",
            "Red Hat Hardened Images:python3-pip-0:26.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:48788"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Hardened Images:python3-pip-0:26.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms",
            "Red Hat Hardened Images:python3-pip-0:26.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "pip: pip: Arbitrary file installation via malicious package indexes"
    }
  ]
}

CVE-2026-13346 (GCVE-0-2026-13346)

Vulnerability from cvelistv5 – Published: 2026-07-29 18:33 – Updated: 2026-07-29 20:21

Title

pip absolute path traversal during download from malicious package indexes

Summary

pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels. This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.

Severity

5.6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-29 19:08 UTC

CWE

CWE-36 - Absolute path traversal

Assigner

PSF CNA under the mitre root

CNA scorecard B 78/100 over 32 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/pypa/pip/pull/14110	patch
https://mail.python.org/archives/list/security-an…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/07/29/7

Impacted products

1 product

Vendor	Product	Version
Python Packaging Authority	pip	Affected: 0 , < 26.2 (python)

Show details on NVD website

JSON

To clipboard

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CVE-2026-6357 (GCVE-0-2026-6357)

Vulnerability from cvelistv5 – Published: 2026-04-27 14:19 – Updated: 2026-04-27 22:17

Title

pip self-update functionality can import newly installed modules after wheel installation

Summary

pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-27 16:08 UTC

CWE

CWE-829 - Inclusion of Functionality from Untrusted Control Sphere

Assigner

PSF CNA under the mitre root

CNA scorecard B 78/100 over 32 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/pypa/pip/pull/13923	patch
https://ichard26.github.io/blog/2026/04/whats-new…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/04/27/7

Impacted products

1 product

Vendor	Product	Version
Pip maintainers	pip	Affected: 0 , < 26.1 (python)

Credits

Damian Shaw Damian Shaw Richard Si Seth Larson

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2026:48788

CVE-2026-13346 (GCVE-0-2026-13346)

CVE-2026-6357 (GCVE-0-2026-6357)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour