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CVE-2026-9079

libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not know nor use them.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3cbd4d947a369c3b92a6ad5daf1760d96fb50768d31c275e3bbc6688d194e9bd
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"curl","vendor":"curl","versions":[{"lessThanOrEqual":"8.20.0","status":"affected","version":"8.20.0","versionType":"semver"},{"lessThanOrEqual":"8.19.0","status":"affected","version":"8.19.0","versionType":"semver"},{"lessThanOrEqual":"8.18.0","status":"affected","version":"8.18.0","versionType":"semver"},{"lessThanOrEqual":"8.17.0","status":"affected","version":"8.17.0","versionType":"semver"},{"lessThanOrEqual":"8.16.0","status":"affected","version":"8.16.0","versionType":"semver"},{"lessThanOrEqual":"8.15.0","status":"affected","version":"8.15.0","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"description":"CWE-522 Insufficiently Protected Credentials","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"www","url":"https://curl.se/docs/CVE-2026-9079.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/cna/references/1
{"name":"json","url":"https://curl.se/docs/CVE-2026-9079.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/cna/references/0
{"name":"issue","url":"https://hackerone.com/reports/3750295"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://hackerone.com/reports/3750295"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1a0e48eaa77aae4649a9a9ece9f6208eec12e1d0d4e8276080f3443b06fd05d9 · sha256:8bf38f134f08e9ba… · /containers/adp/0/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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