CVE-2026-9079 (GCVE-0-2026-9079)
Vulnerability from cvelistv5 – Published: 2026-07-03 06:16 – Updated: 2026-07-03 06:16
VLAI
Title
stale proxy password leak
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
8.20.0 , ≤ 8.20.0
(semver)
Affected: 8.19.0 , ≤ 8.19.0 (semver) Affected: 8.18.0 , ≤ 8.18.0 (semver) Affected: 8.17.0 , ≤ 8.17.0 (semver) Affected: 8.16.0 , ≤ 8.16.0 (semver) Affected: 8.15.0 , ≤ 8.15.0 (semver) Affected: 8.14.1 , ≤ 8.14.1 (semver) Affected: 8.14.0 , ≤ 8.14.0 (semver) Affected: 8.13.0 , ≤ 8.13.0 (semver) Affected: 8.12.1 , ≤ 8.12.1 (semver) Affected: 8.12.0 , ≤ 8.12.0 (semver) Affected: 8.11.1 , ≤ 8.11.1 (semver) Affected: 8.11.0 , ≤ 8.11.0 (semver) Affected: 8.10.1 , ≤ 8.10.1 (semver) Affected: 8.10.0 , ≤ 8.10.0 (semver) Affected: 8.9.1 , ≤ 8.9.1 (semver) Affected: 8.9.0 , ≤ 8.9.0 (semver) Affected: 8.8.0 , ≤ 8.8.0 (semver) |
Credits
{
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"product": "curl",
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]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Guancheng Li"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl had a flaw that when instructed to clear proxy authentication\ncredentials which made it not do so, leaving the old credentials around to get\nused for subsequent transfers that should not know nor use them."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-522 Insufficiently Protected Credentials",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-03T06:16:51.127Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
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"url": "https://curl.se/docs/CVE-2026-9079.json"
},
{
"name": "www",
"url": "https://curl.se/docs/CVE-2026-9079.html"
},
{
"name": "issue",
"url": "https://hackerone.com/reports/3750295"
}
],
"title": "stale proxy password leak"
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-9079",
"datePublished": "2026-07-03T06:16:51.127Z",
"dateReserved": "2026-05-20T12:59:41.444Z",
"dateUpdated": "2026-07-03T06:16:51.127Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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