ByteOS Network

Vulnerability Details :

CVE-2026-6429

Assigner-curl

Assigner Org ID-2499f714-1537-4658-8207-48ae4bb9eae9

Published At-13 May, 2026 | 08:28

Updated At-13 May, 2026 | 14:03

netrc credential leak with reused proxy connection

When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:curl

Assigner Org ID:2499f714-1537-4658-8207-48ae4bb9eae9

Published At:13 May, 2026 | 08:28

Updated At:13 May, 2026 | 14:03

▼CVE Numbering Authority (CNA)

netrc credential leak with reused proxy connection

When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.

Affected Products

Vendor

CURL

Product

curl

Default Status

unaffected

Versions

Affected

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)
From 8.7.1 through 8.7.1 (semver)
From 8.7.0 through 8.7.0 (semver)
From 8.6.0 through 8.6.0 (semver)
From 8.5.0 through 8.5.0 (semver)
From 8.4.0 through 8.4.0 (semver)
From 8.3.0 through 8.3.0 (semver)
From 8.2.1 through 8.2.1 (semver)
From 8.2.0 through 8.2.0 (semver)
From 8.1.2 through 8.1.2 (semver)
From 8.1.1 through 8.1.1 (semver)
From 8.1.0 through 8.1.0 (semver)
From 8.0.1 through 8.0.1 (semver)
From 8.0.0 through 8.0.0 (semver)
From 7.88.1 through 7.88.1 (semver)
From 7.88.0 through 7.88.0 (semver)
From 7.87.0 through 7.87.0 (semver)
From 7.86.0 through 7.86.0 (semver)
From 7.85.0 through 7.85.0 (semver)
From 7.84.0 through 7.84.0 (semver)
From 7.83.1 through 7.83.1 (semver)
From 7.83.0 through 7.83.0 (semver)
From 7.82.0 through 7.82.0 (semver)
From 7.81.0 through 7.81.0 (semver)
From 7.80.0 through 7.80.0 (semver)
From 7.79.1 through 7.79.1 (semver)
From 7.79.0 through 7.79.0 (semver)
From 7.78.0 through 7.78.0 (semver)
From 7.77.0 through 7.77.0 (semver)
From 7.76.1 through 7.76.1 (semver)
From 7.76.0 through 7.76.0 (semver)
From 7.75.0 through 7.75.0 (semver)
From 7.74.0 through 7.74.0 (semver)
From 7.73.0 through 7.73.0 (semver)
From 7.72.0 through 7.72.0 (semver)
From 7.71.1 through 7.71.1 (semver)
From 7.71.0 through 7.71.0 (semver)
From 7.70.0 through 7.70.0 (semver)
From 7.69.1 through 7.69.1 (semver)
From 7.69.0 through 7.69.0 (semver)
From 7.68.0 through 7.68.0 (semver)
From 7.67.0 through 7.67.0 (semver)
From 7.66.0 through 7.66.0 (semver)
From 7.65.3 through 7.65.3 (semver)
From 7.65.2 through 7.65.2 (semver)
From 7.65.1 through 7.65.1 (semver)
From 7.65.0 through 7.65.0 (semver)
From 7.64.1 through 7.64.1 (semver)
From 7.64.0 through 7.64.0 (semver)
From 7.63.0 through 7.63.0 (semver)
From 7.62.0 through 7.62.0 (semver)
From 7.61.1 through 7.61.1 (semver)
From 7.61.0 through 7.61.0 (semver)
From 7.60.0 through 7.60.0 (semver)
From 7.59.0 through 7.59.0 (semver)
From 7.58.0 through 7.58.0 (semver)
From 7.57.0 through 7.57.0 (semver)
From 7.56.1 through 7.56.1 (semver)
From 7.56.0 through 7.56.0 (semver)
From 7.55.1 through 7.55.1 (semver)
From 7.55.0 through 7.55.0 (semver)
From 7.54.1 through 7.54.1 (semver)
From 7.54.0 through 7.54.0 (semver)
From 7.53.1 through 7.53.1 (semver)
From 7.53.0 through 7.53.0 (semver)
From 7.52.1 through 7.52.1 (semver)
From 7.52.0 through 7.52.0 (semver)
From 7.51.0 through 7.51.0 (semver)
From 7.50.3 through 7.50.3 (semver)
From 7.50.2 through 7.50.2 (semver)
From 7.50.1 through 7.50.1 (semver)
From 7.50.0 through 7.50.0 (semver)
From 7.49.1 through 7.49.1 (semver)
From 7.49.0 through 7.49.0 (semver)
From 7.48.0 through 7.48.0 (semver)
From 7.47.1 through 7.47.1 (semver)
From 7.47.0 through 7.47.0 (semver)
From 7.46.0 through 7.46.0 (semver)
From 7.45.0 through 7.45.0 (semver)
From 7.44.0 through 7.44.0 (semver)
From 7.43.0 through 7.43.0 (semver)
From 7.42.1 through 7.42.1 (semver)
From 7.42.0 through 7.42.0 (semver)
From 7.41.0 through 7.41.0 (semver)
From 7.40.0 through 7.40.0 (semver)
From 7.39.0 through 7.39.0 (semver)
From 7.38.0 through 7.38.0 (semver)
From 7.37.1 through 7.37.1 (semver)
From 7.37.0 through 7.37.0 (semver)
From 7.36.0 through 7.36.0 (semver)
From 7.35.0 through 7.35.0 (semver)
From 7.34.0 through 7.34.0 (semver)
From 7.33.0 through 7.33.0 (semver)
From 7.32.0 through 7.32.0 (semver)
From 7.31.0 through 7.31.0 (semver)
From 7.30.0 through 7.30.0 (semver)
From 7.29.0 through 7.29.0 (semver)
From 7.28.1 through 7.28.1 (semver)
From 7.28.0 through 7.28.0 (semver)
From 7.27.0 through 7.27.0 (semver)
From 7.26.0 through 7.26.0 (semver)
From 7.25.0 through 7.25.0 (semver)
From 7.24.0 through 7.24.0 (semver)
From 7.23.1 through 7.23.1 (semver)
From 7.23.0 through 7.23.0 (semver)
From 7.22.0 through 7.22.0 (semver)
From 7.21.7 through 7.21.7 (semver)
From 7.21.6 through 7.21.6 (semver)
From 7.21.5 through 7.21.5 (semver)
From 7.21.4 through 7.21.4 (semver)
From 7.21.3 through 7.21.3 (semver)
From 7.21.2 through 7.21.2 (semver)
From 7.21.1 through 7.21.1 (semver)
From 7.21.0 through 7.21.0 (semver)
From 7.20.1 through 7.20.1 (semver)
From 7.20.0 through 7.20.0 (semver)
From 7.19.7 through 7.19.7 (semver)
From 7.19.6 through 7.19.6 (semver)
From 7.19.5 through 7.19.5 (semver)
From 7.19.4 through 7.19.4 (semver)
From 7.19.3 through 7.19.3 (semver)
From 7.19.2 through 7.19.2 (semver)
From 7.19.1 through 7.19.1 (semver)
From 7.19.0 through 7.19.0 (semver)
From 7.18.2 through 7.18.2 (semver)
From 7.18.1 through 7.18.1 (semver)
From 7.18.0 through 7.18.0 (semver)
From 7.17.1 through 7.17.1 (semver)
From 7.17.0 through 7.17.0 (semver)
From 7.16.4 through 7.16.4 (semver)
From 7.16.3 through 7.16.3 (semver)
From 7.16.2 through 7.16.2 (semver)
From 7.16.1 through 7.16.1 (semver)
From 7.16.0 through 7.16.0 (semver)
From 7.15.5 through 7.15.5 (semver)
From 7.15.4 through 7.15.4 (semver)
From 7.15.3 through 7.15.3 (semver)
From 7.15.2 through 7.15.2 (semver)
From 7.15.1 through 7.15.1 (semver)
From 7.15.0 through 7.15.0 (semver)
From 7.14.1 through 7.14.1 (semver)
From 7.14.0 through 7.14.0 (semver)

Problem Types

Type	CWE ID	Description
N/A	N/A	CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Type: N/A

CWE ID: N/A

Description: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Credits

finder

Muhamad Arga Reksapati

remediation developer

Daniel Stenberg

References

Hyperlink	Resource
https://curl.se/docs/CVE-2026-6429.json	N/A
https://curl.se/docs/CVE-2026-6429.html	N/A
https://hackerone.com/reports/3677759	N/A

Hyperlink: https://curl.se/docs/CVE-2026-6429.json

Resource: N/A

Hyperlink: https://curl.se/docs/CVE-2026-6429.html

Resource: N/A

Hyperlink: https://hackerone.com/reports/3677759

Resource: N/A

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Metrics

Version	Base score	Base severity	Vector
3.1	5.3	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Version: 3.1

Base score: 5.3

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Metrics Other Info

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:2499f714-1537-4658-8207-48ae4bb9eae9

Published At:13 May, 2026 | 13:01

Updated At:14 May, 2026 | 14:18

When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	5.3	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Type: Secondary

Version: 3.1

Base score: 5.3

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CPE Matches

CURL

>>curl>>Versions from 7.14.0(inclusive) to 8.20.0(exclusive)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
NVD-CWE-noinfo	Primary	nvd@nist.gov

CWE ID: NVD-CWE-noinfo

Type: Primary

Source: nvd@nist.gov

References

Hyperlink	Source	Resource
https://curl.se/docs/CVE-2026-6429.html	2499f714-1537-4658-8207-48ae4bb9eae9	Patch Vendor Advisory
https://curl.se/docs/CVE-2026-6429.json	2499f714-1537-4658-8207-48ae4bb9eae9	Product
https://hackerone.com/reports/3677759	2499f714-1537-4658-8207-48ae4bb9eae9	Exploit Issue Tracking Third Party Advisory

Hyperlink: https://curl.se/docs/CVE-2026-6429.html

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

Resource:

Patch

Vendor Advisory

Hyperlink: https://curl.se/docs/CVE-2026-6429.json

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

Resource:

Product

Hyperlink: https://hackerone.com/reports/3677759

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

Resource:

Exploit

Issue Tracking

Third Party Advisory

CVE-2026-6429

Credits

netrc credential leak with reused proxy connection

Vendors

Products

Metrics (CVSS)

Weaknesses

Attack Patterns

Solution/Workaround

References

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

Stakeholder-Specific Vulnerability Categorization (SSVC)

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History

Similar CVEs