Vulnerability-Lookup

CVE-2026-42311 (GCVE-0-2026-42311)

Vulnerability from cvelistv5 – Published: 2026-05-09 04:11 – Updated: 2026-05-12 02:24

Title

Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow)

Summary

Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.

Severity

8.6 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-12 02:24 UTC

CWE

CWE-190 - Integer Overflow or Wraparound
CWE-787 - Out-of-bounds Write

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/python-pillow/Pillow/security/…	x_refsource_CONFIRM
https://github.com/python-pillow/Pillow/pull/9520	x_refsource_MISC
https://github.com/python-pillow/Pillow/commit/58…	x_refsource_MISC
https://github.com/python-pillow/Pillow/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
python-pillow	Pillow	Affected: >= 10.3.0, < 12.2.0	guessed

Show details on NVD website

JSON

To clipboard

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}

RHSA-2026:16009

Vulnerability from csaf_redhat - Published: 2026-05-11 14:14 - Updated: 2026-09-18 18:31

Summary

Red Hat Security Advisory: Red Hat AI Inference Server 3.3.3 (ROCm)

Severity

Important

Scope

22 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

A flaw was found in Pillow, a Python imaging library. An attacker could exploit this vulnerability by tricking a user into processing a specially crafted malicious PSD file. This could lead to memory corruption, potentially causing the application to crash or allowing for arbitrary code execution.

7.8 (High)


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

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2026:16009

Open the full advisory

RHSA-2026:16030

Vulnerability from csaf_redhat - Published: 2026-05-11 15:49 - Updated: 2026-09-18 18:31

Summary

Red Hat Security Advisory: Red Hat AI Inference Server 3.3.3 (CUDA)

Severity

Important

Scope

14 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

7.8 (High)


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

Fixed: 2 products

https://access.redhat.com/errata/RHSA-2026:16030

Open the full advisory

RHSA-2026:57387

Vulnerability from csaf_redhat - Published: 2026-08-20 07:57 - Updated: 2026-09-18 18:31

Summary

Red Hat Security Advisory: Red Hat AI Inference 3.4.4 (spyre)

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

7.8 (High)


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

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:57387

Open the full advisory

RHSA-2026:60520

Vulnerability from csaf_redhat - Published: 2026-08-27 14:50 - Updated: 2026-09-19 13:06

Summary

Red Hat Security Advisory: RHOAI 3.4.4 - Red Hat OpenShift AI

Severity

Critical

Scope

143 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

7.8 (High)


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

Fixed: 16 products Known not affected: 305 products

https://access.redhat.com/errata/RHSA-2026:60520

Open the full advisory

RHSA-2026:61628

Vulnerability from csaf_redhat - Published: 2026-08-31 13:41 - Updated: 2026-09-19 13:06

Summary

Red Hat Security Advisory: Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA)

Severity

Important

Scope

26 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

7.8 (High)


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

Fixed: 2 products

https://access.redhat.com/errata/RHSA-2026:61628

Open the full advisory

SUSE-SU-2026:22626-1

Vulnerability from csaf_suse - Published: 2026-07-10 09:37 - Updated: 2026-09-16 20:03

Summary

Security update for python-Pillow

Severity

Important

Scope

5 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

7.8 (High)


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

Recommended: 16 products

Open the full advisory

UBUNTU-CVE-2026-42311 (CVE-2026-42311)

Vulnerability from osv_ubuntu – Published: 2026-05-09 06:16 – Updated: 2026-06-08 16:44 – Source website

Details

Severity

8.6 (High)


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

7.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-42311	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-42311	REPORT
	https://github.com/python-pillow/Pillow/security/…	REPORT
	https://github.com/python-pillow/Pillow/pull/9520	REPORT
	https://github.com/python-pillow/Pillow/releases/…	REPORT
	https://ubuntu.com/security/notices/USN-8399-1	ADVISORY

JSON

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{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python-pil",
            "binary_version": "6.2.1-3ubuntu0.1~esm2"
          },
          {
            "binary_name": "python-pil.imagetk",
            "binary_version": "6.2.1-3ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "pillow-python2",
        "purl": "pkg:deb/ubuntu/pillow-python2@6.2.1-3ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.1-3~build1",
        "6.2.1-3",
        "6.2.1-3ubuntu0.1~esm1",
        "6.2.1-3ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pil",
            "binary_version": "11.3.0-1ubuntu1.3"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "11.3.0-1ubuntu1.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@11.3.0-1ubuntu1.3?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "11.3.0-1ubuntu1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "11.1.0-5build1",
        "11.3.0-1ubuntu1",
        "11.3.0-1ubuntu1.1",
        "11.3.0-1ubuntu1.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pil",
            "binary_version": "12.1.1-2ubuntu1.2"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "12.1.1-2ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@12.1.1-2ubuntu1.2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.1.1-2ubuntu1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "11.3.0-1ubuntu1",
        "11.3.0-1ubuntu2",
        "12.0.0-1ubuntu1",
        "12.1.1-1ubuntu1",
        "12.1.1-2ubuntu1",
        "12.1.1-2ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.",
  "id": "UBUNTU-CVE-2026-42311",
  "modified": "2026-06-08T16:44:03Z",
  "published": "2026-05-09T06:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42311"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-42311"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-pwv6-vv43-88gr"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python-pillow/Pillow/pull/9520"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python-pillow/Pillow/releases/tag/12.2.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8399-1"
    }
  ],
  "related": [
    "USN-8399-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-42311"
  ]
}

WID-SEC-W-2026-2455

Vulnerability from csaf_certbund - Published: 2026-07-21 22:00 - Updated: 2026-08-10 22:00

Summary

Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen

Severity

Hoch

Scope

240 vulnerabilities in this advisory, including CVE-2026-42311.

CVE-2026-42311

Known affected: 5 products

Open the full advisory

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.

Detection rules are retrieved from Rulezet.

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

CVE-2026-42311 (GCVE-0-2026-42311)

RHSA-2026:16009

RHSA-2026:16030

RHSA-2026:57387

RHSA-2026:60520

RHSA-2026:61628

SUSE-SU-2026:22626-1

UBUNTU-CVE-2026-42311 (CVE-2026-42311)

WID-SEC-W-2026-2455

Tags

Sightings

Nomenclature

Related by attack behaviour