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Vulnerability Details :

CVE-2026-9079

Summary
Assigner-curl
Assigner Org ID-2499f714-1537-4658-8207-48ae4bb9eae9
Published At-03 Jul, 2026 | 06:16
Updated At-03 Jul, 2026 | 06:16
Rejected At-
Credits

stale proxy password leak

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:curl
Assigner Org ID:2499f714-1537-4658-8207-48ae4bb9eae9
Published At:03 Jul, 2026 | 06:16
Updated At:03 Jul, 2026 | 06:16
Rejected At:
▼CVE Numbering Authority (CNA)
stale proxy password leak

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.

Affected Products
Vendor
CURLcurl
Product
curl
Default Status
unaffected
Versions
Affected
  • From 8.20.0 through 8.20.0 (semver)
  • From 8.19.0 through 8.19.0 (semver)
  • From 8.18.0 through 8.18.0 (semver)
  • From 8.17.0 through 8.17.0 (semver)
  • From 8.16.0 through 8.16.0 (semver)
  • From 8.15.0 through 8.15.0 (semver)
  • From 8.14.1 through 8.14.1 (semver)
  • From 8.14.0 through 8.14.0 (semver)
  • From 8.13.0 through 8.13.0 (semver)
  • From 8.12.1 through 8.12.1 (semver)
  • From 8.12.0 through 8.12.0 (semver)
  • From 8.11.1 through 8.11.1 (semver)
  • From 8.11.0 through 8.11.0 (semver)
  • From 8.10.1 through 8.10.1 (semver)
  • From 8.10.0 through 8.10.0 (semver)
  • From 8.9.1 through 8.9.1 (semver)
  • From 8.9.0 through 8.9.0 (semver)
  • From 8.8.0 through 8.8.0 (semver)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-522 Insufficiently Protected Credentials
Type: N/A
CWE ID: N/A
Description: CWE-522 Insufficiently Protected Credentials
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Guancheng Li
remediation developer
Daniel Stenberg
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://curl.se/docs/CVE-2026-9079.json
N/A
https://curl.se/docs/CVE-2026-9079.html
N/A
https://hackerone.com/reports/3750295
N/A
Hyperlink: https://curl.se/docs/CVE-2026-9079.json
Resource: N/A
Hyperlink: https://curl.se/docs/CVE-2026-9079.html
Resource: N/A
Hyperlink: https://hackerone.com/reports/3750295
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:2499f714-1537-4658-8207-48ae4bb9eae9
Published At:03 Jul, 2026 | 07:16
Updated At:03 Jul, 2026 | 07:16

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
CPE Matches
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://curl.se/docs/CVE-2026-9079.html2499f714-1537-4658-8207-48ae4bb9eae9
N/A
https://curl.se/docs/CVE-2026-9079.json2499f714-1537-4658-8207-48ae4bb9eae9
N/A
https://hackerone.com/reports/37502952499f714-1537-4658-8207-48ae4bb9eae9
N/A
Hyperlink: https://curl.se/docs/CVE-2026-9079.html
Source: 2499f714-1537-4658-8207-48ae4bb9eae9
Resource: N/A
Hyperlink: https://curl.se/docs/CVE-2026-9079.json
Source: 2499f714-1537-4658-8207-48ae4bb9eae9
Resource: N/A
Hyperlink: https://hackerone.com/reports/3750295
Source: 2499f714-1537-4658-8207-48ae4bb9eae9
Resource: N/A

Change History

0
Information is not available yet

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