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Public proof of conceptFix available

CVE-2026-68517

A public proof of concept exists; no exploitation attested.

  • Published2026-08-17
  • Fixed in4.5.6
  • WeaknessCWE-942

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.

Timeline

dates in UTC
  1. 2026-08-1717:16CVE publishedNVD

Versions per branch

OSV
glances
BranchAffectedFixed in
4.5< 4.5.64.5.6

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • nicolargo glances
    Affected
    • = < 4.5.6no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-08-17

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • glancesUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • glancesUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • glancesUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • glancesUbuntu:26.04:LTSall versions · no fixed version listed
  • glancesUbuntu:24.04:LTSall versions · no fixed version listed
  • glancesUbuntu:22.04:LTSall versions · no fixed version listed
  • glancesDebian:14all versions · fixed in 4.5.6+dfsg-1
  • glancesDebian:13all versions · no fixed version listed

2 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-68517 Red Hat Product Security

    glances: Glances: Information disclosure via REST API CORS bypass

Full record on NVD

Fix

  1. Update glances to 4.5.6

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-08-18
  • CNACVSS 3.16.5known since 2026-10-23
  • CNAweakness (CWE)CWE-942known since 2026-10-23
  • FIRST EPSSEPSS score0.5 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2026-08-17

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Published
2026-08-17
Last Modified
2026-10-23
NVD status
Deferred
GitHub Advisory
GHSA-fp27-88fp-2phg

Frequently asked questions

What is CVE-2026-68517?

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.

Is CVE-2026-68517 actively exploited?

A proof-of-concept exploit exists for CVE-2026-68517, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-68517?

CVE-2026-68517 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

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Sources for this record