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CVE-2026-6429

Опубликовано: 29 апр. 2026
Источник: redhat
CVSS3: 6.5
EPSS Низкий

Описание

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.

A flaw was found in libcurl. When configured to use a .netrc file for credentials and follow HTTP redirects, libcurl can inadvertently send the password from the initial connection to the redirected host. This sensitive information disclosure occurs when both the original and redirect URLs use clear text HTTP, are performed over the same HTTP proxy, and the same connection is reused. This vulnerability, categorized as an Exposure of Sensitive Information to an Unauthorized Actor (CWE-200), could allow an attacker to obtain user credentials.

Отчет

Moderate: A flaw in libcurl could lead to credential leakage. This issue occurs when libcurl is configured to use a .netrc file for credentials and follows HTTP redirects, potentially exposing passwords to the redirected host. Exploitation requires both the original and redirect URLs to be clear text HTTP, performed over the same HTTP proxy, and with connection reuse. The curl command-line tool is not affected by this vulnerability.

Меры по смягчению последствий

To prevent the credential leak, avoid using the combination of .netrc for credentials, clear text HTTP URLs, and an HTTP proxy when making requests with libcurl. This operational control prevents the specific conditions that enable the vulnerability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Confidential Compute Attestationbuild-of-trustee/trustee-rhel9Fix deferred
Confidential Compute Attestationconfidential-compute-attestation-tech-preview/trustee-rhel9Fix deferred
Confidential Compute Attestationopenshift-sandboxed-containers/osc-operator-bundleFix deferred
Confidential Compute Attestationopenshift-sandboxed-containers/osc-podvm-builder-rhel9Fix deferred
Confidential Compute Attestationopenshift-sandboxed-containers/osc-podvm-payload-rhel9Fix deferred
Confidential Compute Attestationopenshift-sandboxed-containers/osc-rhel9-operatorFix deferred
Logging Subsystem for Red Hat OpenShiftopenshift-logging/cluster-logging-operator-bundleFix deferred
Logging Subsystem for Red Hat OpenShiftopenshift-logging/cluster-logging-rhel9-operatorFix deferred
Logging Subsystem for Red Hat OpenShiftopenshift-logging/eventrouter-rhel9Fix deferred
Logging Subsystem for Red Hat OpenShiftopenshift-logging/fluentd-rhel9Fix deferred

Показывать по

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-201
https://bugzilla.redhat.com/show_bug.cgi?id=2461205curl: libcurl: Credential leak via reused proxy connection during HTTP redirects

EPSS

Процентиль: 41%
0.00519
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.3
ubuntu
3 месяца назад

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.

CVSS3: 5.3
nvd
3 месяца назад

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.

CVSS3: 5.3
msrc
3 месяца назад

netrc credential leak with reused proxy connection

CVSS3: 5.3
debian
3 месяца назад

When asked to both use a `.netrc` file for credentials and to follow H ...

CVSS3: 5.3
github
3 месяца назад

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

Процентиль: 41%
0.00519
Низкий

6.5 Medium

CVSS3