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CVE-2026-33540

Опубликовано: 06 апр. 2026
Источник: debian

Описание

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, in pull-through cache mode, distribution discovers token auth endpoints by parsing WWW-Authenticate challenges returned by the configured upstream registry. The realm URL from a bearer challenge is used without validating that it matches the upstream registry host. As a result, an attacker-controlled upstream (or an attacker with MitM position to the upstream) can cause distribution to send the configured upstream credentials via basic auth to an attacker-controlled realm URL. This vulnerability is fixed in 3.1.0.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
docker-registryfixed2.8.3+ds1-3package
docker-registryno-dsatrixiepackage
docker-registrypostponedbookwormpackage
docker-registrypostponedbullseyepackage

Примечания

  • https://github.com/distribution/distribution/security/advisories/GHSA-3p65-76g6-3w7r

Связанные уязвимости

CVSS3: 7.5
ubuntu
4 месяца назад

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, in pull-through cache mode, distribution discovers token auth endpoints by parsing WWW-Authenticate challenges returned by the configured upstream registry. The realm URL from a bearer challenge is used without validating that it matches the upstream registry host. As a result, an attacker-controlled upstream (or an attacker with MitM position to the upstream) can cause distribution to send the configured upstream credentials via basic auth to an attacker-controlled realm URL. This vulnerability is fixed in 3.1.0.

CVSS3: 3.1
redhat
4 месяца назад

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, in pull-through cache mode, distribution discovers token auth endpoints by parsing WWW-Authenticate challenges returned by the configured upstream registry. The realm URL from a bearer challenge is used without validating that it matches the upstream registry host. As a result, an attacker-controlled upstream (or an attacker with MitM position to the upstream) can cause distribution to send the configured upstream credentials via basic auth to an attacker-controlled realm URL. This vulnerability is fixed in 3.1.0.

CVSS3: 7.5
nvd
4 месяца назад

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, in pull-through cache mode, distribution discovers token auth endpoints by parsing WWW-Authenticate challenges returned by the configured upstream registry. The realm URL from a bearer challenge is used without validating that it matches the upstream registry host. As a result, an attacker-controlled upstream (or an attacker with MitM position to the upstream) can cause distribution to send the configured upstream credentials via basic auth to an attacker-controlled realm URL. This vulnerability is fixed in 3.1.0.

CVSS3: 7.5
github
4 месяца назад

Distribution affected by pull-through cache credential exfiltration via www-authenticate bearer realm

CVSS3: 7.5
fstec
4 месяца назад

Уязвимость инструментария для хранения и доставки содержимого контейнеров Distribution, связанная с недостаточной проверкой запросов на стороне сервера, позволяющая нарушителю осуществить SSRF-атаку