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CVE-2026-2739

This affects versions of the package bn.js before 5.2.3. Calling maskn(0) on any BN instance corrupts the internal state, causing toString(), divmod(), and other methods to enter an infinite loop, hanging the process indefinitely.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:574bcc62286eb6901c7bf8f5e3a873aaafe4c80f48cb6ba7e421443a5b5ec3a0
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","exploitCodeMaturity":"PROOF_OF_CONCEPT","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:L/E:P","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

1 source assertion
{"product":"bn.js","vendor":"n/a","versions":[{"lessThan":"5.2.3","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","exploitCodeMaturity":"PROOF_OF_CONCEPT","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:L/E:P","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-835","description":"Infinite loop","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"url":"https://gist.github.com/Kr0emer/02370d18328c28b5dd7f9ac880d22a91"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/references/3
{"url":"https://github.com/indutny/bn.js/commit/33df26b5771e824f303a79ec6407409376baa64b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/references/5
{"url":"https://github.com/indutny/bn.js/issues/186"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/references/2
{"url":"https://github.com/indutny/bn.js/issues/316"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/references/1
{"url":"https://github.com/indutny/bn.js/pull/317"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /containers/cna/references/4
{"url":"https://security.snyk.io/vuln/SNYK-JS-BNJS-15274301"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f25dcf08005adf99504a2280813b5d18d6ff27ace615e19cbfe996aadde3243b · sha256:1d803bf3f9307374… · /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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