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Integer Overflow to Buffer Overflow The advisory has been revoked - it doesn't affect any version of package ztunnel-1.27-compat  (opens in a new tab)

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EPSS
0.61% (48th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-ZTUNNEL127COMPAT-15306715
  • published18 Feb 2026
  • disclosed4 Feb 2026
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Introduced: 4 Feb 2026

CVE-2026-25541  (opens in a new tab)
CWE-680  (opens in a new tab)

Amendment

The Minimos security team deemed this advisory irrelevant for Minimos:latest.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ztunnel-1.27-compat package and not the ztunnel-1.27-compat package as distributed by Minimos.

Bytes is a utility library for working with bytes. From version 1.2.1 to before 1.11.1, Bytes is vulnerable to integer overflow in BytesMut::reserve. In the unique reclaim path of BytesMut::reserve, if the condition "v_capacity >= new_cap + offset" uses an unchecked addition. When new_cap + offset overflows usize in release builds, this condition may incorrectly pass, causing self.cap to be set to a value that exceeds the actual allocated capacity. Subsequent APIs such as spare_capacity_mut() then trust this corrupted cap value and may create out-of-bounds slices, leading to UB. This behavior is observable in release builds (integer overflow wraps), whereas debug builds panic due to overflow checks. This issue has been patched in version 1.11.1.