CVE-2026-63158Network attack vectorHinoki check available

Authentication bypass via password-hash cookie replay

Published Oct 13, 2026 · Updated Oct 13, 2026

Authentication bypass in Omnispace Agora-Project before 26.10.0 allows remote attackers to impersonate users via cookies. The legacy AGORAP_LOG/AGORAP_PASS authentication mechanism accepts a stored bcrypt password hash as a replayable bearer credential instead of requiring the actual password. Exploitation requires possession of a user's stored hash and grants that user's application access, including administrator access when an administrator's hash is obtained.

CVSS severity9.1
Critical
EPSS probability0.41%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Authentication bypass in Omnispace Agora-Project before 26.10.0 allows remote attackers to impersonate users via cookies. The legacy AGORAP_LOG/AGORAP_PASS authentication mechanism accepts a stored bcrypt password hash as a replayable bearer credential instead of requiring the actual password. Exploitation requires possession of a user's stored hash and grants that user's application access, including administrator access when an administrator's hash is obtained.

The record

CVE
CVE-2026-63158
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
Omnispace
Product
Agora-Project
Classifications
CWE-836, T1550.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Omnispace · Agora-Projectversion=0 <26.10.0

Published CVSS scores

9.1VulnCheckCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-836Use of Password Hash Instead of Password for Authentication
T1550.002Pass the Hash

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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