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RUSTSEC-2026-0405
zstd-safezstd-safeInBuffer's fields are public, so safe code can set pos past the end of
src. The position was passed to the C library unchecked, and
ZSTD_seekable_compressStream, unlike the other streaming functions, does
not validate it: it read past the end of the input slice, by up to the
frame size, and compressed that memory into the output.
The flaw was corrected by checking the position before every call into the C library.
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Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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