# CVE-2026-0810: RUSTSEC-2025-0140 - Non-utf8 String can be created with `TimeBuf::as_str`

Source: https://junglewise.ai/threats/cve-2026-0810-gix-date-can-create-non-utf8-string-with-timebuf-as-str  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-01-26  
License: CC BY 4.0 with a link back

CVE-2026-0810 · Severity: high · CVSS 7.1 · Published 2026-01-26

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.

Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io), [GitoxideLabs](https://junglewise.ai/threats/vendors/gitoxidelabs).

## Quick answers

**Is CVE-2026-0810 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-0810 being exploited in the wild.

**How severe is CVE-2026-0810?** High severity, with a CVSS score of 7.1, published 26 January 2026.

**Which products and versions are affected?** gix-date (crates.io) SEMVER:introduced=0,fixed=0.12.0, SEMVER:introduced=0.0.0-0,fixed=0.12.0.

**Is there a fix for CVE-2026-0810?** Yes. gix-date (crates.io): upgrade to 0.12.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-0810?** Check whether you run gix-date (crates.io) or GitoxideLabs Gix-Date at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- gix-date (crates.io): upgrade to 0.12.0 or later

  ```sh
  cargo update -p gix-date
  ```


## Affected products

- gix-date (crates.io) SEMVER:introduced=0,fixed=0.12.0, SEMVER:introduced=0.0.0-0,fixed=0.12.0
- GitoxideLabs Gix-Date

## Identifiers

- CVE-2026-0810
- GHSA-6mw6-mj76-grwc
- RUSTSEC-2025-0140

## Related threats

- [Duplicate Advisory: gix-date can create non-utf8 string with `TimeBuf::as_str`](https://junglewise.ai/threats/duplicate-advisory-gix-date-can-create-non-utf8-string-with-timebuf-as-9b7aabfa)