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CVE-2022-21698 is a denial-of-service vulnerability in Prometheus client_golang prior to version 1.11.1. The promhttp HTTP-server instrumentation middleware permits unbounded metric-label cardinality when it processes requests using non-standard HTTP methods. Each distinct method can create a new labeled metric series, potentially exhausting memory. The issue affects uses of promhttp.InstrumentHandler* middleware other than RequestsInFlight when a metric passed to the middleware has a method label.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
34 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A denial-of-service vulnerability in Prometheus client_golang involving InstrumentHandlerCounter.
A vulnerability addressed by SUSE in the golang-github-vpenso-prometheus_slurm_exporter package. The supplied CVSS v3 vector indicates a network-reachable, low-complexity, unauthenticated vulnerability with high availability impact.
A validation-bypass and privilege-escalation vulnerability addressed by updating github.com/prometheus/client_golang to version 1.11.1.
Denial-of-service flaw in prometheus/client_golang's InstrumentHandlerCounter.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.