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CVE-2026-31866

flagd is a feature flag daemon with a Unix philosophy. Prior to 0.14.2, flagd exposes OFREP (/ofrep/v1/evaluate/...) and gRPC (evaluation.v1, evaluation.v2) endpoints for feature flag evaluation. These endpoints are designed to be publicly accessible by client applications. The evaluation context included in request payloads is read into memory without any size restriction. An attacker can send a single HTTP request with an arbitrarily large body, causing flagd to allocate a corresponding amount
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:110ea24515d9b2719e97702186aa3f51a1205b8a4091f0ca73efbc2955fc8420
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"flagd","vendor":"open-feature","versions":[{"status":"affected","version":"< 0.14.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:57d7a5892e82a55d653cc0b1e9dd1e8e7c8c03886c843327718df3599bbff85a · sha256:ca93d52bb28eff5f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:57d7a5892e82a55d653cc0b1e9dd1e8e7c8c03886c843327718df3599bbff85a · sha256:ca93d52bb28eff5f… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:57d7a5892e82a55d653cc0b1e9dd1e8e7c8c03886c843327718df3599bbff85a · sha256:ca93d52bb28eff5f… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/open-feature/flagd/commit/25c5fd7e80c26eb2c00b20317b2456fe6f927ea3","tags":["x_refsource_MISC"],"url":"https://github.com/open-feature/flagd/commit/25c5fd7e80c26eb2c00b20317b2456fe6f927ea3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:57d7a5892e82a55d653cc0b1e9dd1e8e7c8c03886c843327718df3599bbff85a · sha256:ca93d52bb28eff5f… · /containers/cna/references/1
{"name":"https://github.com/open-feature/flagd/security/advisories/GHSA-rmrf-g9r3-73pm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-feature/flagd/security/advisories/GHSA-rmrf-g9r3-73pm"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:57d7a5892e82a55d653cc0b1e9dd1e8e7c8c03886c843327718df3599bbff85a · sha256:ca93d52bb28eff5f… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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