Vulnerability-Lookup

OESA-2026-2327 (CVE-2026-42798)

Vulnerability from osv_openeuler – Published: 2026-05-15 11:11 – Updated: 2026-08-06 11:11 – Source website

Summary

lcms2 security update

Details

LittleCMS intends to be an OPEN SOURSE small-footprint color management engine,with special focus on accuracy and performence.It uses the International Color Consortium standard (ICC), which is the modern standard when regarding to color management. The ICC specification is widely used and is referred to in many International and other de-facto standards.

Security Fix(es):

Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.(CVE-2026-42798)

Severity

4.0 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-42798	ADVISORY

JSON

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{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "lcms2-2.16-3.oe2403sp3.aarch64.rpm",
          "lcms2-debuginfo-2.16-3.oe2403sp3.aarch64.rpm",
          "lcms2-debugsource-2.16-3.oe2403sp3.aarch64.rpm",
          "lcms2-devel-2.16-3.oe2403sp3.aarch64.rpm",
          "lcms2-utils-2.16-3.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "lcms2-help-2.16-3.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "lcms2-2.16-3.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "lcms2-2.16-3.oe2403sp3.x86_64.rpm",
          "lcms2-debuginfo-2.16-3.oe2403sp3.x86_64.rpm",
          "lcms2-debugsource-2.16-3.oe2403sp3.x86_64.rpm",
          "lcms2-devel-2.16-3.oe2403sp3.x86_64.rpm",
          "lcms2-utils-2.16-3.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "lcms2",
        "purl": "pkg:rpm/openEuler/lcms2\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.16-3.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "LittleCMS intends to be an OPEN SOURSE small-footprint color management engine,with special focus on accuracy and performence.It uses the International Color Consortium standard (ICC), which is the modern standard when regarding to color management. The ICC specification is widely used and is referred to in many International and other de-facto standards.\r\n\r\nSecurity Fix(es):\n\nLittle CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.(CVE-2026-42798)",
  "id": "OESA-2026-2327",
  "modified": "2026-08-06T11:11:17Z",
  "published": "2026-05-15T11:11:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2327"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42798"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "lcms2 security update",
  "upstream": [
    "CVE-2026-42798"
  ]
}

CVE-2026-42798 (GCVE-0-2026-42798)

Vulnerability from cvelistv5 – Published: 2026-04-30 06:34 – Updated: 2026-04-30 12:57

Summary

Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.

Severity

4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-30 12:57 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

mitre mitre root

References

3 references

URL	Tags
https://github.com/mm2/Little-CMS/commit/6a686019…
https://github.com/mm2/Little-CMS/compare/lcms2.1…
https://www.openwall.com/lists/oss-security/2026/…

Impacted products

1 product

Vendor	Product	Version
littlecms	little cms color engine	Affected: 2.16 , < 2.19 (custom) cpe:2.3:a:littlecms:little_cms_color_engine::::::::

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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        "metrics": [
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              "content": {
                "id": "CVE-2026-42798",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-30T12:57:05.867260Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "vendor": "littlecms",
          "versions": [
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              "lessThan": "2.19",
              "status": "affected",
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              "versionType": "custom"
            }
          ]
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      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:littlecms:little_cms_color_engine:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.19",
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                }
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        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          "url": "https://github.com/mm2/Little-CMS/commit/6a686019825a89b715d16671f18d049523354176"
        },
        {
          "url": "https://github.com/mm2/Little-CMS/compare/lcms2.18...lcms2.19"
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    "assignerShortName": "mitre",
    "cveId": "CVE-2026-42798",
    "datePublished": "2026-04-30T06:34:13.323Z",
    "dateReserved": "2026-04-30T06:34:12.814Z",
    "dateUpdated": "2026-04-30T12:57:14.221Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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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.

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OESA-2026-2327 (CVE-2026-42798)

CVE-2026-42798 (GCVE-0-2026-42798)

Tags

Sightings

Nomenclature

Related by attack behaviour