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CVE-2026-44326

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-traffic-influence API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, patch, and delete traffic-influence subscriptions either with no Authorization header at all, or with a forged bearer token (e.g. Authorization: Bearer not-a-real-token). This includes creating AnyUeInd=true subscriptions intended to affect group / a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fbf8f8d4546b6d24ed0b3b6b1eac3097f61438051ebdccdb191f5e181b606985
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"free5gc","vendor":"free5gc","versions":[{"status":"affected","version":"< 4.2.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.4,"baseSeverity":"CRITICAL","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/free5gc/free5gc/issues/859","tags":["x_refsource_MISC"],"url":"https://github.com/free5gc/free5gc/issues/859"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/cna/references/1
{"name":"https://github.com/free5gc/free5gc/security/advisories/GHSA-3p28-73q7-45xp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/free5gc/free5gc/security/advisories/GHSA-3p28-73q7-45xp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/free5gc/free5gc/security/advisories/GHSA-3p28-73q7-45xp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/adp/0/references/0
{"name":"https://github.com/free5gc/nef/pull/23","tags":["x_refsource_MISC"],"url":"https://github.com/free5gc/nef/pull/23"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:680adda4d6916f431d6d1b93419440c1c4ef37204bf29c2ede9107b111e16944 · sha256:bb556edfd0edc089… · /containers/cna/references/2

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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