Authentication bypass via forgeable truncated-hash tokens
Published Jun 28, 2026 · Updated Jun 28, 2026
Authentication bypass in SimStudioAI Sim 0.6.92 and earlier allows remote attackers to access password-protected chat and form deployments. deployment.ts base64-encodes an unsigned authentication token containing only an eight-hex-character SHA-256 password hash. Knowledge of a public deployment identifier and the 32-bit hash permits fresh forged cookies to disclose configuration and pass protected request flows.
Summary
What happened
Authentication bypass in SimStudioAI Sim 0.6.92 and earlier allows remote attackers to access password-protected chat and form deployments. deployment.ts base64-encodes an unsigned authentication token containing only an eight-hex-character SHA-256 password hash. Knowledge of a public deployment identifier and the 32-bit hash permits fresh forged cookies to disclose configuration and pass protected request flows.
The record
- CVE
- CVE-2026-13510
- Published
- Jun 28, 2026
- Updated
- Jun 28, 2026
- Vendor
- SimStudioAI
- Product
- Sim
- Classifications
- CWE-328, CWE-327, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 28, 2026CVE publishedPublication date reported by the CVE source.
- Jun 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.6.0
- Affected versionversion=0.6.1
- Affected versionversion=0.6.10
- Affected versionversion=0.6.11
- Affected versionversion=0.6.12
- Affected versionversion=0.6.13
- Affected versionversion=0.6.14
- Affected versionversion=0.6.15
- Affected versionversion=0.6.16
- Affected versionversion=0.6.17
- Affected versionversion=0.6.18
- Affected versionversion=0.6.19
- Affected versionversion=0.6.2
- Affected versionversion=0.6.20
- Affected versionversion=0.6.21
- Affected versionversion=0.6.22
- Affected versionversion=0.6.23
- Affected versionversion=0.6.24
- Affected versionversion=0.6.25
- Affected versionversion=0.6.26
- Affected versionversion=0.6.27
- Affected versionversion=0.6.28
- Affected versionversion=0.6.29
- Affected versionversion=0.6.3
- Affected versionversion=0.6.30
- Affected versionversion=0.6.31
- Affected versionversion=0.6.32
- Affected versionversion=0.6.33
- Affected versionversion=0.6.34
- Affected versionversion=0.6.35
- Affected versionversion=0.6.36
- Affected versionversion=0.6.37
- Affected versionversion=0.6.38
- Affected versionversion=0.6.39
- Affected versionversion=0.6.4
- Affected versionversion=0.6.40
- Affected versionversion=0.6.41
- Affected versionversion=0.6.42
- Affected versionversion=0.6.43
- Affected versionversion=0.6.44
- Affected versionversion=0.6.45
- Affected versionversion=0.6.46
- Affected versionversion=0.6.47
- Affected versionversion=0.6.48
- Affected versionversion=0.6.49
- Affected versionversion=0.6.5
- Affected versionversion=0.6.50
- Affected versionversion=0.6.51
- Affected versionversion=0.6.52
- Affected versionversion=0.6.53
- Affected versionversion=0.6.54
- Affected versionversion=0.6.55
- Affected versionversion=0.6.56
- Affected versionversion=0.6.57
- Affected versionversion=0.6.58
- Affected versionversion=0.6.59
- Affected versionversion=0.6.6
- Affected versionversion=0.6.60
- Affected versionversion=0.6.61
- Affected versionversion=0.6.62
- Affected versionversion=0.6.63
- Affected versionversion=0.6.64
- Affected versionversion=0.6.65
- Affected versionversion=0.6.66
- Affected versionversion=0.6.67
- Affected versionversion=0.6.68
- Affected versionversion=0.6.69
- Affected versionversion=0.6.7
- Affected versionversion=0.6.70
- Affected versionversion=0.6.71
- Affected versionversion=0.6.72
- Affected versionversion=0.6.73
- Affected versionversion=0.6.74
- Affected versionversion=0.6.75
- Affected versionversion=0.6.76
- Affected versionversion=0.6.77
- Affected versionversion=0.6.78
- Affected versionversion=0.6.79
- Affected versionversion=0.6.8
- Affected versionversion=0.6.80
- Affected versionversion=0.6.81
- Affected versionversion=0.6.82
- Affected versionversion=0.6.83
- Affected versionversion=0.6.84
- Affected versionversion=0.6.85
- Affected versionversion=0.6.86
- Affected versionversion=0.6.87
- Affected versionversion=0.6.88
- Affected versionversion=0.6.89
- Affected versionversion=0.6.9
- Affected versionversion=0.6.90
- Affected versionversion=0.6.91
- Affected versionversion=0.6.92
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Password-protected deployment auth tokens can be forgedproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo