Vulnerability-Lookup

CVE-2026-49277 (GCVE-0-2026-49277)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:04 – Updated: 2026-06-26 18:43

Title

Rocket.Chat: OAuth access and refresh tokens remain valid after account deactivation

Summary

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12, Rocket.Chat does not revoke OAuth bearer or refresh tokens when a user is deactivated. A deactivated user can continue using an existing OAuth access token, and can also mint a fresh access token from an existing refresh token. This vulnerability is fixed in 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12.

Severity

2.3 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-26 17:51 UTC

CWE

CWE-613 - Insufficient Session Expiration

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/RocketChat/Rocket.Chat/securit…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
RocketChat	Rocket.Chat	Affected: >= 8.5.0-rc.0, < 8.5.0 Affected: >= 8.4.0-rc.0, < 8.4.2 Affected: >= 8.3.0-rc.0, < 8.3.4 Affected: >= 8.2.0-rc.0, < 8.2.4 Affected: >= 8.1.0-rc.0, < 8.1.5 Affected: >= 8.0.0-rc.0, < 8.0.6 Affected: >= 7.11.0-rc.0, < 7.13.8 Affected: < 7.10.12	guessed

Show details on NVD website

JSON

To clipboard

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              "content": {
                "id": "CVE-2026-49277",
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                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
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            "privilegesRequired": "NONE",
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}

FKIE_CVE-2026-49277

Vulnerability from fkie_nvd - Published: 2026-06-24 21:16 - Updated: 2026-06-26 19:16

Severity

2.3 (Low) - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-39hg-492f-3c4f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Rocket.Chat",
          "vendor": "RocketChat",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.5.0-rc.0, \u003c 8.5.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.4.0-rc.0, \u003c 8.4.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.3.0-rc.0, \u003c 8.3.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.2.0-rc.0, \u003c 8.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.1.0-rc.0, \u003c 8.1.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0-rc.0, \u003c 8.0.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.11.0-rc.0, \u003c 7.13.8"
            },
            {
              "status": "affected",
              "version": "\u003c 7.10.12"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12, Rocket.Chat does not revoke OAuth bearer or refresh tokens when a user is deactivated. A deactivated user can continue using an existing OAuth access token, and can also mint a fresh access token from an existing refresh token. This vulnerability is fixed in 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12."
    }
  ],
  "id": "CVE-2026-49277",
  "lastModified": "2026-06-26T19:16:41.810",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
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          "version": "4.0",
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    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-49277",
          "options": [
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      "url": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-39hg-492f-3c4f"
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        }
      ],
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      "type": "Secondary"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.