CVE-2025-0913

Description

os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with O_CREATE and O_EXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would create a file in that location. OpenFile now always returns an error when the O_CREATE and O_EXCL flags are both set and the target path is a symlink.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS Trends

Current EPSS score: 0.31%• Percentile: 25%

Techniques & Countermeasures

• CWE-59•Improper Link Resolution Before File Access ('Link Following')

  The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Systems

• chainguard•go-1.20

  < 1.20.14-r9

• chainguard•go-1.22

  < 1.22.12-r8

• chainguard•katib-earlystopping

  < 0.19.0-r31

• chainguard•katib-suggestion-goptuna-compat

  all

• chainguard•katib-suggestion-hyperband

  < 0.19.0-r31

• chainguard•katib-suggestion-hyperopt

  < 0.19.0-r31 | < 0.19.0-r40

• chainguard•katib-suggestion-nas-darts

  < 0.19.0-r31

• chainguard•katib-suggestion-nas-enas

  < 0.19.0-r31

• chainguard•katib-suggestion-optuna-enas

  < 0.19.0-r31

• chainguard•katib-suggestion-pbt-enas

  < 0.19.0-r31

• chainguard•katib-suggestion-skopt-enas

  < 0.19.0-r31

• chainguard•katib-tfevent-metricscollector

  < 0.19.0-r31

• chainguard•newrelic-fluent-bit-output

  < 2.4.0-r5

• chainguard•nvidia-nsight-compute-12.8

  < 2025.1.1.2-r7

• chainguard•nvidia-nsight-compute-12.9

  < 2025.2.1.3-r5 | all

• chainguard•nvidia-nsight-compute-13.0

  < 2025.3.0.19-r2

• chainguard•nvidia-nsight-compute-13.1

  < 2025.4.1.2-r0 | < 2025.3.0.19-r0

• wolfi•go-1.20

  < 1.20.14-r9

• wolfi•go-1.22

  < 1.22.12-r8

• wolfi•katib-earlystopping

  < 0.19.0-r31

• wolfi•katib-suggestion-goptuna-compat

  all

• wolfi•katib-suggestion-hyperband

  < 0.19.0-r31

• wolfi•katib-suggestion-hyperopt

  < 0.19.0-r31 | < 0.19.0-r40

• wolfi•katib-suggestion-nas-darts

  < 0.19.0-r31

• wolfi•katib-suggestion-nas-enas

  < 0.19.0-r31

• wolfi•katib-suggestion-optuna-enas

  < 0.19.0-r31

• wolfi•katib-suggestion-pbt-enas

  < 0.19.0-r31

• wolfi•katib-suggestion-skopt-enas

  < 0.19.0-r31

• wolfi•katib-tfevent-metricscollector

  < 0.19.0-r31

• wolfi•newrelic-fluent-bit-output

  < 2.4.0-r5

• go standard library•os

  < 1.23.10 | ≥ 1.24.0-0, < 1.24.4

• go standard library•syscall

  < 1.23.10 | ≥ 1.24.0-0, < 1.24.4

• golang•go

  < 1.23.10 | ≥ 1.24.0, < 1.24.4

• Go•stdlib

  ≥ 1.24.0-0, < 1.24.4

References (7)

• https://go.dev/cl/672396
• https://go.dev/issue/73702
• https://groups.google.com/g/golang-announce/c/ufZ8WpEsA3A
• https://pkg.go.dev/vuln/GO-2025-3750
• https://pkg.go.dev
• https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/0xxx/CVE-2025-0913.json
• https://nvd.nist.gov/vuln/detail/CVE-2025-0913