CWE-135

Incorrect Calculation of Multi-Byte String Length

The product does not correctly calculate the length of strings that can contain wide or multi-byte characters.

CVE-2026-0810 (GCVE-0-2026-0810)

Vulnerability from cvelistv5 – Published: 2026-01-26 19:36 – Updated: 2026-01-26 20:59
VLAI?
Title
Gix-date: gix-date: undefined behavior due to invalid string generation
Summary
A flaw was found in gix-date. The `gix_date::parse::TimeBuf::as_str` function can generate strings containing invalid non-UTF8 characters. This issue violates the internal safety invariants of the `TimeBuf` component, leading to undefined behavior when these malformed strings are subsequently processed. This could potentially result in application instability or other unforeseen consequences.
CWE
  • CWE-135 - Incorrect Calculation of Multi-Byte String Length
Assigner
Show details on NVD website

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Mitigation

Phase: Implementation

Strategy: Input Validation

Description:

  • Always verify the length of the string unit character.
Mitigation

Phase: Implementation

Strategy: Libraries or Frameworks

Description:

  • Use length computing functions (e.g. strlen, wcslen, etc.) appropriately with their equivalent type (e.g.: byte, wchar_t, etc.)

No CAPEC attack patterns related to this CWE.

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