Vulnerability-Lookup

GHSA-599R-Q6PW-W9JJ

Vulnerability from github – Published: 2026-10-20 18:31 – Updated: 2026-10-20 18:31

Details

Memos before 0.27.0 contains a missing authorization vulnerability in the ActivityService ListActivities and GetActivity API methods that allows authenticated users to view all users' activity records. Low-privileged attackers can enumerate sequential activity IDs to obtain creator IDs, timestamps, and memo-comment references, including activity on other users' private memos.

Severity

4.3 (Medium)


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

5.3 (Medium)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-113601"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-20T16:17:09Z",
    "severity": "MODERATE"
  },
  "details": "Memos before 0.27.0 contains a missing authorization vulnerability in the ActivityService ListActivities and GetActivity API methods that allows authenticated users to view all users\u0027 activity records. Low-privileged attackers can enumerate sequential activity IDs to obtain creator IDs, timestamps, and memo-comment references, including activity on other users\u0027 private memos.",
  "id": "GHSA-599r-q6pw-w9jj",
  "modified": "2026-10-20T18:31:44Z",
  "published": "2026-10-20T18:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113601"
    },
    {
      "type": "WEB",
      "url": "https://github.com/usememos/memos/issues/5651"
    },
    {
      "type": "WEB",
      "url": "https://github.com/usememos/memos/commit/04f239a2fc74f7090c779a6a7b8a08238fd31b88"
    },
    {
      "type": "WEB",
      "url": "https://github.com/usememos/memos/blob/v0.26.2/server/router/api/v1/activity_service.go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/usememos/memos/releases/tag/v0.27.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/memos-before-0.27.0-missing-authorization-via-activityservice-listactivities-getactivity"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-113601 (GCVE-0-2026-113601)

Vulnerability from cvelistv5 – Published: 2026-10-20 15:40 – Updated: 2026-10-23 01:44

Title

Memos before 0.27.0 Missing Authorization via ActivityService ListActivities/GetActivity

Summary

Severity

5.3 (Medium)


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

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-23 01:44 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6762 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/usememos/memos/issues/5651	issue-tracking
https://github.com/usememos/memos/commit/04f239a2…	patch
https://github.com/usememos/memos/releases/tag/v0.27.0	release-notes
https://github.com/usememos/memos/blob/v0.26.2/se…	technical-description
https://www.vulncheck.com/advisories/memos-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
usememos	memos	Affected: 0 , < 0.27.0 (semver) cpe:2.3:a:usememos:memos::::::::

Date Public

2026-02-22 17:51

Credits

lighthousekeeper1212 leediay153 from Viettel Post

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-113601",
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-23T01:44:29.210876Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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    ],
    "cna": {
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Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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