Vulnerability-Lookup

CVE-2025-9078 (GCVE-0-2025-9078)

Vulnerability from cvelistv5 – Published: 2025-09-15 10:10 – Updated: 2025-09-15 13:57

Title

Weak cache keys lead to post IDOR and link preview poisoning

Summary

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to properly validate cache keys for link metadata which allows authenticated users to access unauthorized posts and poison link previews via hash collision attacks on FNV-1 hashing

Severity

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-15 13:53 UTC

CWE

CWE-328 - Use of Weak Hash

Assigner

Mattermost CNA under the mitre root

CNA scorecard B 80/100 over 130 records in the last 180 days details

References

1 reference

URL	Tags
https://mattermost.com/security-updates

Impacted products

1 product

Vendor	Product	Version	CPE status
Mattermost	Mattermost	Affected: 10.8.0 , ≤ 10.8.3 (semver) Affected: 10.5.0 , ≤ 10.5.8 (semver) Affected: 9.11.0 , ≤ 9.11.17 (semver) Affected: 10.10.0 , ≤ 10.10.1 (semver) Affected: 10.9.0 , ≤ 10.9.3 (semver) Unaffected: 10.11.0 Unaffected: 10.8.4 Unaffected: 10.5.9 Unaffected: 9.11.18 Unaffected: 10.10.2 Unaffected: 10.9.4	guessed

Credits

daw10

Show details on NVD website

JSON

To clipboard

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          },
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            "value": "Las versiones de Mattermost 10.8.x menor o igual que 10.8.3, 10.5.x menor o igual que 10.5.8, 9.11.x menor o igual que 9.11.17, 10.10.x menor o igual que 10.10.1, 10.9.x menor o igual que 10.9.3 no validan correctamente las claves de cach\u00e9 para los metadatos de enlaces, lo que permite a los usuarios autenticados acceder a publicaciones no autorizadas y envenenar las previsualizaciones de enlaces mediante ataques de colisi\u00f3n de hash en el hashing FNV-1."
          }
        ],
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    "vulnrichment": {
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                },
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                },
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          ],
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}

CERTFR-2025-AVI-0707

Vulnerability from certfr_avis - Published: 2025-08-18 - Updated: 2025-09-16

De multiples vulnérabilités ont été découvertes dans Mattermost Server. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Mattermost	Mattermost Server	Mattermost Server versions 10.10.x antérieures à 10.10.2
Mattermost	Mattermost Server	Mattermost Server versions 10.5.x antérieures à 10.5.10
Mattermost	Mattermost Server	Mattermost Server versions 10.9.x antérieures à 10.9.5
Mattermost	Mattermost Server	Mattermost Server versions 10.8.x antérieures à 10.8.4
Mattermost	Mattermost Server	Mattermost Server versions 9.11.x antérieures à 9.11.18

References

Title

Publication Time

FKIE_CVE-2025-9078

Vulnerability from fkie_nvd - Published: 2025-09-15 10:15 - Updated: 2026-10-19 17:10

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	responsibledisclosure@mattermost.com	https://mattermost.com/security-updates	Vendor Advisory

Impacted products

Vendor	Product	Version
mattermost	mattermost_server	*
mattermost	mattermost_server	*
mattermost	mattermost_server	*
mattermost	mattermost_server	*
mattermost	mattermost_server	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Mattermost",
          "vendor": "Mattermost",
          "versions": [
            {
              "lessThanOrEqual": "10.8.3",
              "status": "affected",
              "version": "10.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.5.8",
              "status": "affected",
              "version": "10.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.11.17",
              "status": "affected",
              "version": "9.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.10.1",
              "status": "affected",
              "version": "10.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.9.3",
              "status": "affected",
              "version": "10.9.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "10.11.0"
            },
            {
              "status": "unaffected",
              "version": "10.8.4"
            },
            {
              "status": "unaffected",
              "version": "10.5.9"
            },
            {
              "status": "unaffected",
              "version": "9.11.18"
            },
            {
              "status": "unaffected",
              "version": "10.10.2"
            },
            {
              "status": "unaffected",
              "version": "10.9.4"
            }
          ]
        }
      ],
      "source": "responsibledisclosure@mattermost.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4E2C0E13-B52A-4539-80B6-DC0FE8FF2E56",
              "versionEndExcluding": "9.11.18",
              "versionStartIncluding": "9.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B95DCAE5-07C2-46B1-B03E-ED3FB9B2C568",
              "versionEndExcluding": "10.5.9",
              "versionStartIncluding": "10.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BE00156D-6ACB-4F8C-BFFC-03A8127199A4",
              "versionEndExcluding": "10.8.4",
              "versionStartIncluding": "10.8.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BB49CDD5-C206-4BEC-8CB5-D757DCC43208",
              "versionEndExcluding": "10.9.4",
              "versionStartIncluding": "10.9.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F3861BBC-7E0F-4782-9666-4EF12C1ABDF5",
              "versionEndExcluding": "10.10.2",
              "versionStartIncluding": "10.10.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 9.11.x \u003c= 9.11.17, 10.10.x \u003c= 10.10.1, 10.9.x \u003c= 10.9.3 fail to properly validate cache keys for link metadata which allows authenticated users to access unauthorized posts and poison link previews via hash collision attacks on FNV-1 hashing"
    },
    {
      "lang": "es",
      "value": "Las versiones de Mattermost 10.8.x menor o igual que 10.8.3, 10.5.x menor o igual que 10.5.8, 9.11.x menor o igual que 9.11.17, 10.10.x menor o igual que 10.10.1, 10.9.x menor o igual que 10.9.3 no validan correctamente las claves de cach\u00e9 para los metadatos de enlaces, lo que permite a los usuarios autenticados acceder a publicaciones no autorizadas y envenenar las previsualizaciones de enlaces mediante ataques de colisi\u00f3n de hash en el hashing FNV-1."
    }
  ],
  "id": "CVE-2025-9078",
  "lastModified": "2026-10-19T17:10:00.173",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "responsibledisclosure@mattermost.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-9078",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-15T13:53:35.598807Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-15T10:15:32.627",
  "references": [
    {
      "source": "responsibledisclosure@mattermost.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "sourceIdentifier": "responsibledisclosure@mattermost.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-328"
        }
      ],
      "source": "responsibledisclosure@mattermost.com",
      "type": "Secondary"
    }
  ]
}

GHSA-9P92-X77W-9FW2

Vulnerability from github – Published: 2025-09-15 12:31 – Updated: 2025-09-16 19:13

Summary

Mattermost makes Use of Weak Hash

Details

Severity

4.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.8.0"
            },
            {
              "fixed": "10.8.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.5.0"
            },
            {
              "fixed": "10.5.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.11.0"
            },
            {
              "fixed": "9.11.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.10.0"
            },
            {
              "fixed": "10.10.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.9.0"
            },
            {
              "fixed": "10.9.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost/server/v8"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.0-20250718075842-cd87e5c87737"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-9078"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-328"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-09-16T19:13:08Z",
    "nvd_published_at": "2025-09-15T10:15:32Z",
    "severity": "MODERATE"
  },
  "details": "Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 9.11.x \u003c= 9.11.17, 10.10.x \u003c= 10.10.1, 10.9.x \u003c= 10.9.3 fail to properly validate cache keys for link metadata which allows authenticated users to access unauthorized posts and poison link previews via hash collision attacks on FNV-1 hashing.",
  "id": "GHSA-9p92-x77w-9fw2",
  "modified": "2025-09-16T19:13:08Z",
  "published": "2025-09-15T12:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9078"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/356880c8430b77a4a390c89d5a33f6928188d137"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/944ad5cdd9876ef61c78c8275906262a4118755a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/a8a4badc130be101e5bc4b7916bbcd2f966c4b79"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/cd87e5c877373f109742aa90a3fa136c14774325"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mattermost/mattermost"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Mattermost makes Use of Weak Hash"
}

OPENSUSE-SU-2025:15564-1

Vulnerability from csaf_opensuse - Published: 2025-09-18 00:00 - Updated: 2026-11-01 10:38

Summary

govulncheck-vulndb-0.0.20250917T170349-1.1 on GA media

Severity

Moderate

Scope

21 vulnerabilities in this advisory, including CVE-2025-9078.

CVE-2025-9078

Recommended: 4 products

Open the full advisory

WID-SEC-W-2025-1856

Vulnerability from csaf_certbund - Published: 2025-08-17 22:00 - Updated: 2025-09-22 22:00

Summary

Mattermost Server: Mehrere Schwachstellen

Severity

Hoch

Scope

6 vulnerabilities in this advisory, including CVE-2025-9078.

CVE-2025-9078

Known affected: 8 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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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-2025-9078 (GCVE-0-2025-9078)

CERTFR-2025-AVI-0707

Solutions

FKIE_CVE-2025-9078

GHSA-9P92-X77W-9FW2

OPENSUSE-SU-2025:15564-1

WID-SEC-W-2025-1856

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour