CVE-2026-27960

criticalpriority · track · 12EPSS 0.071 · 94 %ileexploit · weaponizedDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · weaponized

Likely / severe?

7.09% (94th) EPSS

CVSS 9.8 · critical

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploited by unauthenticated attackers to query the API as any existing user, including the default admin account. This issue has been fixed in version 6.9.13. As a workaround, the default admin can be disabled using the `APP__ADMIN__EXTERNALLY_MANAGED` configuration.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · security-advisories@github.comexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287US

exploits (1)

Public proof-of-concept and weaponised exploit code.

exploit/linux/http/opencti_notifier_rceOpenCTI Authentication Bypass and Notifier EJS Remote Code Executionweaponized · metasploit

affected products (5)

Products and version ranges known to be affected.

Open Source OpenCTI <6.9.13all versionscert_bundDE
Open Source OpenCTI< 6.9.13cert_bundDE
OpenCTI-Platform opencti6.6.0, → 6.9.13enisa_euvdEU
citeum opencti6.9.0 → 6.9.13nvdUScpe:2.3:a:citeum:opencti:*:*:*:*:*:*:*:*
PyPI pycti6.9.0 → 6.9.13osvUSpkg:pypi/pycti

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1357OpenCTI: Schwachstelle ermöglicht Erlangen von AdministratorrechtenDeutsch2026-05-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenCTI ausnutzen, um Administratorrechte zu erlangen.
PYSEC-2026-1192026-05-05vendor · osvUS
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploited by unauthenticated attackers to query the API as any existing user, including the default admin account. This issue has been fixed in version 6.9.13. As a workaround, the default admin can be disabled using the `APP__ADMIN__EXTERNALLY_MANAGED` configuration.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2026-05-05modified 2026-07-25

references (5)

External citations — patches, advisories, analysis.

scry

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