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CVE-2026-42177

linux-entra-sso is a browser plugin for Linux to SSO on Microsoft Entra ID. Prior to 1.8.1, platform/chrome/js/platform-chrome.js:69-88 registers a single declarativeNetRequest rule whose urlFilter is Platform.SSO_URL + "/*", i.e. "https://login.microsoftonline.com/*". Chrome's urlFilter without a | or || anchor is substring-matched against the full request URL. The same applied rule action is modifyHeaders that attaches the Entra ID Primary Refresh Token cookie. The Firefox adapter in platform/
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4b991d3db95e33e5d988eb1715917d8eb8212fe4ad4f73111ba53307c0b527c2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-436","description":"CWE-436: Interpretation Conflict","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"linux-entra-sso","vendor":"siemens","versions":[{"status":"affected","version":"< 1.8.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-436","description":"CWE-436: Interpretation Conflict","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"url":"https://github.com/siemens/linux-entra-sso/security/advisories/GHSA-52rj-42vh-2rxc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/adp/0/references/0
{"name":"https://github.com/siemens/linux-entra-sso/security/advisories/GHSA-52rj-42vh-2rxc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siemens/linux-entra-sso/security/advisories/GHSA-52rj-42vh-2rxc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5e26310c4312c0a96753c28ed953b01b90c01c25ab96716df773d8d150d7ba9 · sha256:bc22f39f89c175bf… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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