Description
Outstatic CMS <= 2.1.9 contains a hardcoded JWT signing secret. When the OST_TOKEN_SECRET environment variable is not set, the application falls back to the default value which is publicly visible in the source code repository. An unauthenticated remote attacker can exploit this by forging JWT session tokens with arbitrary user data and full administrative permissions.
Published: 2026-07-30
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 04 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Title Hardcoded JWT signing secret allows forged admin session tokens

Sun, 02 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Avitorio
Avitorio outstatic
Vendors & Products Avitorio
Avitorio outstatic

Fri, 31 Jul 2026 23:30:00 +0000

Type Values Removed Values Added
Title Hardcoded JWT signing secret allows forged admin session tokens

Fri, 31 Jul 2026 12:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-798
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 30 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Description Outstatic CMS <= 2.1.9 contains a hardcoded JWT signing secret. When the OST_TOKEN_SECRET environment variable is not set, the application falls back to the default value which is publicly visible in the source code repository. An unauthenticated remote attacker can exploit this by forging JWT session tokens with arbitrary user data and full administrative permissions.
References

Subscriptions

Avitorio Outstatic
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-31T11:43:25.439Z

Reserved: 2026-06-08T00:00:00.000Z

Link: CVE-2026-52539

cve-icon Vulnrichment

Updated: 2026-07-31T11:42:40.904Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-04T12:30:09Z

Weaknesses