CVE Explorer
CVE-2026-39819
The "go bug" command writes to two files with predictable names in the system temporary directory (for example, "/tmp"). An attacker with access to the temporary directory can create a symlink in one of these names, causing "go bug" to overwrite the target of the symlink.
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":"cmd/go","product":"cmd/go","vendor":"Go toolchain","versions":[{"lessThan":"1.25.10","status":"affected","version":"0","versionType":"semver"},{"lessThan":"1.26.3","status":"affected","version":"1.26.0-0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"description":"CWE-377: Insecure Temporary File","lang":"en"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"url":"https://go.dev/cl/763882"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /containers/cna/references/1
{"url":"https://go.dev/issue/78584"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /containers/cna/references/0
{"url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /containers/cna/references/2
{"url":"https://pkg.go.dev/vuln/GO-2026-4978"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:58522ad902d52e443f2d8c91b77b186ca7f512f81d879d8b08a42474b21959eb · sha256:a74384c2dd189a8b… · /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.