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CVE-2026-67319

axios before 0.33.0 (and 1.x before 1.18.0) can consume inherited properties from nested request option objects when the JavaScript process's Object.prototype has already been polluted by another component. While the top-level merged config uses a null prototype, nested plain objects such as auth and paramsSerializer are cloned into ordinary objects and read without own-property checks. When an application passes placeholder nested objects such as auth: {} or paramsSerializer: {}, inherited user
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:33fddbb31448d0c99de824e18a86d308c1e402f4208073249ea7c68adbe83965
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","packageURL":"pkg:npm/axios","product":"axios","vendor":"axios","versions":[{"lessThan":"1.18.0","status":"affected","version":"1.0.0","versionType":"semver"},{"status":"unaffected","version":"1.18.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/affected/1

{"defaultStatus":"unaffected","packageURL":"pkg:npm/axios","product":"axios","vendor":"axios","versions":[{"lessThan":"0.33.0","status":"affected","version":"0.8.0","versionType":"semver"},{"status":"unaffected","version":"0.33.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","packageURL":"pkg:npm/axios","product":"axios","vendor":"axios","versions":[{"lessThan":"1.18.0","status":"affected","version":"1.0.0","versionType":"semver"},{"status":"unaffected","version":"1.18.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/affected/1
{"defaultStatus":"unaffected","packageURL":"pkg:npm/axios","product":"axios","vendor":"axios","versions":[{"lessThan":"0.33.0","status":"affected","version":"0.8.0","versionType":"semver"},{"status":"unaffected","version":"0.33.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-1321","description":"Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/axios/axios/security/advisories/GHSA-7q8q-rj6j-mhjq"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/adp/0/references/0
{"name":"GitHub Security Advisory (GHSA-7q8q-rj6j-mhjq)","tags":["vendor-advisory"],"url":"https://github.com/axios/axios/security/advisories/GHSA-7q8q-rj6j-mhjq"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/references/0
{"name":"VulnCheck Advisory: axios before 0.33.0 Prototype Pollution via nested option objects","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/axios-before-prototype-pollution-via-nested-option-objects"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a3890d4d6d3d4d59014795c4bb316f1d4182556df39d600b497945ae3fc65d4 · sha256:c2eeb47113aa00a0… · /containers/cna/references/1

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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