{"schema_version":"1.9.0","id":"BIT-prometheus-2026-42154","published":"2026-07-14T15:49:19.565Z","modified":"2026-09-08T08:48:18.636399882Z","aliases":["CVE-2026-42154","GHSA-8rm2-7qqf-34qm","GO-2026-5264"],"summary":"Prometheus: remote read endpoint allows denial of service via crafted snappy payload","details":"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 small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.","affected":[{"package":{"name":"prometheus","ecosystem":"Bitnami","purl":"pkg:bitnami/prometheus"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.305.3"},{"introduced":"0.306.0"},{"fixed":"0.311.3"},{"introduced":"1.0.0"},{"fixed":"3.5.3"},{"introduced":"3.6.0"},{"fixed":"3.11.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/prometheus/BIT-prometheus-2026-42154.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"references":[{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25039"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25245"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:29770"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:30651"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34357"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34359"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34364"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:36651"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:36796"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-42154"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2466505"},{"type":"FIX","url":"https://github.com/prometheus/prometheus/pull/18584"},{"type":"FIX","url":"https://github.com/prometheus/prometheus/pull/18585"},{"type":"ARTICLE","url":"https://github.com/prometheus/prometheus/releases/tag/v3.11.3"},{"type":"ARTICLE","url":"https://github.com/prometheus/prometheus/releases/tag/v3.5.3"},{"type":"ADVISORY","url":"https://github.com/prometheus/prometheus/security/advisories/GHSA-8rm2-7qqf-34qm"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42154"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42154.json"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34794"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40118"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40262"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40945"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40970"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40972"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40974"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41019"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41030"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41031"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41066"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:40792"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:42146"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:42796"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:42852"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:43052"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:44622"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:44263"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:47149"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:44235"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:47952"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:47728"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:48699"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:50758"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:50843"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53412"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53413"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53415"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53530"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:54288"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:56340"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:56789"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:56912"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60386"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:59833"}],"database_specific":{"cpes":["cpe:2.3:a:prometheus:prometheus:*:*:*:*:*:go:*:*"],"severity":"High"}}