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CVE-2026-39836

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f6d8b9133314514a9f86b13b1e9b28acc566bc89d709869813417eba695ff60f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"collectionURL":"https://pkg.go.dev","defaultStatus":"unaffected","packageName":"net","product":"net","programRoutines":[{"name":"Resolver.lookupPort"},{"name":"Resolver.lookupAddr"},{"name":"Resolver.lookupTXT"},{"name":"Resolver.lookupNS"},{"name":"Resolver.lookupMX"},{"name":"Resolver.lookupSRV"},{"name":"Dial"},{"name":"DialTimeout"},{"name":"Dialer.Dial"},{"name":"Dialer.DialContext"},{"name":"Listen"},{"name":"ListenConfig.Listen"},{"name":"ListenConfig.ListenPacket"},{"name":"ListenPacket"},{"name":"LookupAddr"},{"name":"LookupCNAME"},{"name":"LookupHost"},{"name":"LookupIP"},{"name":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /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:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"description":"CWE-248: Uncaught Exception","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://go.dev/cl/775320"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /containers/cna/references/2
{"url":"https://go.dev/issue/79006"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /containers/cna/references/0
{"url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /containers/cna/references/1
{"url":"https://pkg.go.dev/vuln/GO-2026-4971"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e95edf4d031e75775045cfd46f0888b1c9b980fac23bf6fec5df19c508e90c · sha256:c8cb8e81d08751ac… · /containers/cna/references/3

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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