Prometheus vulnerable to stored XSS via crafted histogram bucket label values in the old web UI heatmap display

Impact In the Prometheus server's legacy web UI enabled via the command-line flag --enable-feature=old-ui, the histogram heatmap chart view does not escape le label values when inserting them into the HTML for use as axis tick mark labels. An attacker who can inject crafted metrics e.g. via a...

EUVD-2026-27091

Prometheus: Remote read endpoint allows denial of service via crafted snappy payload...

EUVD-2026-27089

Prometheus Azure AD remote write OAuth client secret exposed via config API...

GHSA-WG65-39GG-5WFJ Prometheus Azure AD remote write OAuth client secret exposed via config API

Impact Users who use Azure AD remote write with OAuth authentication are impacted. The clientsecret field in the Azure AD remote write OAuth configuration storage/remote/azuread was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving the configuration via the...

golang-github-prometheus-prometheus-3.11.3-1.1 on GA media (moderate)

golang-github-prometheus-prometheus-3.11.3-1.1 on GA media Announcement ID: openSUSE-SU-2026:10676-1 Rating: moderate Cross-References: CVE-2026-42151 CVE-2026-42154 CVSS scores: CVE-2026-42151 SUSE : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2026-42154 SUSE : 7.5...

PT-2026-40721

Name of the Vulnerable Software and Affected Versions Prometheus versions 2.49.0 through 3.5.2 Prometheus versions 3.11.0 through 3.11.2 Description In the legacy web UI, which is enabled via the --enable-feature=old-ui command-line flag, the histogram heatmap chart view fails to escape label...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the remote read endpoint when processing snappy-compressed request bodies. An attacker can cause excessive memory allocation and crash the process by sending specially crafted payloads...

AZL-86607 CVE-2026-42154 affecting package telegraf for versions less than 1.31.0-22

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...

DEBIAN-CVE-2026-42151

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the clientsecret field in the Azure AD remote write OAuth configuration storage/remote/azuread was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving...

CVE-2026-42154

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...

CVE-2026-42151

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the clientsecret field in the Azure AD remote write OAuth configuration storage/remote/azuread was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving...

AZL-86610 CVE-2026-42151 affecting package telegraf for versions less than 1.31.0-22

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the clientsecret field in the Azure AD remote write OAuth configuration storage/remote/azuread was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving...

CVE-2026-42154

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...

CVE-2026-42151

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the clientsecret field in the Azure AD remote write OAuth configuration storage/remote/azuread was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving...

UBUNTU-CVE-2026-42151

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the clientsecret field in the Azure AD remote write OAuth configuration storage/remote/azuread was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving...

UBUNTU-CVE-2026-42154

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...

CVE-2026-42154

Prometheus (open-source monitoring/time-series database) is affected by CVE-2026-42154. Before versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker c...

CVE-2026-42154 Prometheus: remote read endpoint allows denial of service via crafted snappy payload

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...

CVE-2026-42154

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...

CVE-2026-42154 Prometheus: remote read endpoint allows denial of service via crafted snappy payload

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint /api/v1/read does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a sma...