CVE-2025-26621

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Source
https://cve.org/CVERecord?id=CVE-2025-26621
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-26621.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-26621
Aliases
Related
  • GHSA-gq63-jm3h-374p
  • GHSA-mf88-g2wq-p7qm
Published
2025-05-19T16:01:50.419Z
Modified
2026-05-20T08:11:46.263396708Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H CVSS Calculator
Summary
OpenCTI vulnerable to Denial of Service through web hook
Details

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.5.2, any user with the capability manage customizations can edit webhook that will execute javascript code. This can be abused to cause a denial of service attack by prototype pollution, making the node js server running the OpenCTI frontend become unavailable. Version 6.5.2 fixes the issue.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/26xxx/CVE-2025-26621.json",
    "cwe_ids": [
        "CWE-94"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/opencti-platform/opencti

Affected ranges

Type
GIT
Repo
https://github.com/opencti-platform/opencti
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c7a235883e563734296ada7f1b89ef08638a312f

Affected versions

1.*
1.0.0
1.0.1
1.0.2
1.1.0
1.1.2
2.*
2.0.1
2.0.2
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
3.*
3.0.0
3.0.1
3.0.2
3.0.3
3.2.0
3.2.2
3.3.0
3.3.1
3.3.2
4.*
4.0.0
4.0.1
4.0.2
4.0.3
4.0.4
4.0.5
4.0.6
4.0.7
4.1.0
4.1.1
4.1.2
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.4.0
4.4.1
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.10.0
5.10.1
5.10.2
5.10.3
5.11.0
5.11.1
5.11.10
5.11.11
5.11.12
5.11.13
5.11.2
5.11.3
5.11.4
5.11.5
5.11.6
5.11.7
5.11.8
5.11.9
5.12.0
5.12.1
5.12.10
5.12.11
5.12.12
5.12.13
5.12.14
5.12.15
5.12.16
5.12.17
5.12.18
5.12.19
5.12.2
5.12.20
5.12.21
5.12.22
5.12.23
5.12.24
5.12.25
5.12.26
5.12.27
5.12.3
5.12.4
5.12.5
5.12.6
5.12.7
5.12.8
5.12.9
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.3.0
5.3.1
5.3.10
5.3.11
5.3.12
5.3.13
5.3.14
5.3.15
5.3.16
5.3.17
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
5.3.8
5.3.9
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.5.3
5.5.4
5.6.0
5.6.1
5.6.2
5.7.0
5.7.1
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.8.0
5.8.1
5.8.2
5.8.3
5.8.4
5.8.5
5.8.6
5.8.7
5.9.0
5.9.1
5.9.2
5.9.3
5.9.4
5.9.5
5.9.6
6.*
6.0.0
6.0.10
6.0.2
6.0.3
6.0.4
6.0.5
6.0.6
6.0.7
6.0.8
6.0.9
6.1.0
6.1.1
6.1.10
6.1.12
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.2.0
6.2.1
6.2.10
6.2.11
6.2.12
6.2.13
6.2.14
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
6.3.0
6.3.1
6.3.3
6.3.4
6.3.5
6.3.6
6.4.0
6.4.1
6.4.10
6.4.11
6.4.2
6.4.3
6.4.4
6.4.5
6.4.6
6.4.7
6.4.8
6.4.9
6.5.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-26621.json"