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vetkit.c.tempfile.insecure-function

mktemp / tmpnam / tempnam only return a name; another process can create that file before it is opened (insecure temporary file).

Last updated:

Suite: Security

c, cpp

mktemp / tmpnam / tempnam only return a name; another process can create that file before it is opened (insecure temporary file).

Category: SECURITY · Engine rule severity: WARNING

How to fix it

Use mkstemp / mkdtemp (or tmpfile), which create and open the file atomically with a private mode.

References

Source: packages/engine/rules/sast/c.yml.

Generated from shipped rule definitions at build time. Matching is a review signal, not proof of exploitability. “generic” denotes text matching, not complete language or framework coverage. Runtime configuration and available tools affect whether a rule runs.