Vulnerability-Lookup

GHSA-PVMF-7X77-8Q82

Vulnerability from github – Published: 2026-04-21 00:32 – Updated: 2026-04-21 00:32

Details

HKUDS OpenHarness prior to PR #159 remediation contains a session key derivation vulnerability that allows authenticated participants in shared chats or threads to hijack other users' sessions by exploiting a shared ohmo session key that lacks sender identity verification. Attackers can reuse another user's conversation state and replace or interrupt their active tasks by colliding into the same session boundary through the shared chat or thread scope.

Severity ?

6.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-6729"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-20T22:16:23Z",
    "severity": "MODERATE"
  },
  "details": "HKUDS OpenHarness prior to PR #159 remediation contains a session key derivation vulnerability that allows authenticated participants in shared chats or threads to hijack other users\u0027 sessions by exploiting a shared ohmo session key that lacks sender identity verification. Attackers can reuse another user\u0027s conversation state and replace or interrupt their active tasks by colliding into the same session boundary through the shared chat or thread scope.",
  "id": "GHSA-pvmf-7x77-8q82",
  "modified": "2026-04-21T00:32:14Z",
  "published": "2026-04-21T00:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6729"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/OpenHarness/pull/159"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/OpenHarness/commit/3186851c479ee714a9bb9aa6cd77017db7e589e2"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/hkuds-openharness-session-key-collision-privilege-escalation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-6729 (GCVE-0-2026-6729)

Vulnerability from cvelistv5 – Published: 2026-04-20 22:01 – Updated: 2026-04-21 17:39

Title

HKUDS OpenHarness Session Key Collision Privilege Escalation

Summary

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CWE

CWE-287 - Improper Authentication (CWE-287)

Assigner

VulnCheck

References

URL

Tags

	https://github.com/HKUDS/OpenHarness/pull/159	patch
	https://github.com/HKUDS/OpenHarness/commit/31868…	patch
	https://www.vulncheck.com/advisories/hkuds-openha…	third-party-advisory

Impacted products

	Vendor	Product	Version
	HKUDS	OpenHarness	Affected: 0 , < PR #159 (git)

Date Public ?

2026-04-20 22:00

Credits

Chia Min Jun Lennon

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-6729",
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                  },
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                "timestamp": "2026-04-21T17:39:09.526862Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PVMF-7X77-8Q82

CVE-2026-6729 (GCVE-0-2026-6729)

Tags

Sightings

Nomenclature