CVE-2026-63149

Status: DeferredCritical (9.1)—
Severity9.1Critical · CVSS 4.0
Exploitation probability0.36 %higher than 29% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Omnispace Agora Project before 26.10.0 contains an insecure randomness vulnerability that allows attackers to predict temporary or default account passwords generated by Txt::defaultPassword() using PHP's uniqid() function based on server time in microseconds. Attackers who observe or approximate the account creation time can compute the predictable password and take over the account before the legitimate user logs in.

CVSS

Base score
9.1
Version
4.0
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.36 %
Percentile among all scored CVEs
29
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

El vector AV:N/PR:N/UI:N indica explotación remota sin autenticación; las contraseñas temporales predecibles (uniqid con microsegundos) permiten tomar la cuenta, es decir, acceso válido.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

CWEs

References

Show 3 references

Raw JSON (NVD)

Show
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "url": "https://github.com/xech/agora-project/releases/tag/26.10",
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      "url": "https://www.agora-project.net/",
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      "value": "Omnispace Agora Project before 26.10.0 contains an insecure randomness vulnerability that allows attackers to predict temporary or default account passwords generated by Txt::defaultPassword() using PHP's uniqid() function based on server time in microseconds. Attackers who observe or approximate the account creation time can compute the predictable password and take over the account before the legitimate user logs in."
    }
  ],
  "lastModified": "2026-10-15T15:12:54.040",
  "sourceIdentifier": "disclosure@vulncheck.com"
}