CVE-2026-0810

7.1 HIGH

📋 TL;DR

A vulnerability in gix-date's TimeBuf component allows generation of invalid non-UTF8 strings, violating internal safety guarantees and causing undefined behavior. This affects applications using vulnerable versions of the gix-date Rust crate, potentially leading to crashes or instability. Users of gitoxide or other software depending on gix-date are impacted.

💻 Affected Systems

Products:
  • gix-date Rust crate
  • gitoxide
  • software using gix-date
Versions: gix-date versions before 0.9.0
Operating Systems: All platforms running Rust applications
Default Config Vulnerable: ⚠️ Yes
Notes: Any application using gix-date's TimeBuf::as_str function with potentially malformed input is vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Application crash leading to denial of service, potential memory corruption enabling arbitrary code execution in worst-case scenarios.

🟠

Likely Case

Application instability, crashes, or unexpected behavior when processing malformed time strings.

🟢

If Mitigated

Minimal impact with proper input validation and error handling in place.

🌐 Internet-Facing: MEDIUM - Could affect web services or APIs processing time data from untrusted sources.
🏢 Internal Only: LOW - Primarily affects internal data processing with trusted inputs.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: NO
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires ability to trigger the vulnerable function with specific malformed data.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: gix-date 0.9.0

Vendor Advisory: https://rustsec.org/advisories/RUSTSEC-2025-0140.html

Restart Required: Yes

Instructions:

1. Update Cargo.toml to require gix-date >=0.9.0
2. Run 'cargo update gix-date'
3. Rebuild and redeploy affected applications
4. Restart services using the updated crate

🔧 Temporary Workarounds

Input validation wrapper

all

Add validation layer before calling TimeBuf::as_str to ensure UTF-8 compliance

// Rust code: validate input strings before processing

🧯 If You Can't Patch

  • Implement strict input validation for all time data entering the application
  • Monitor application logs for crashes or unexpected behavior related to time parsing

🔍 How to Verify

Check if Vulnerable:

Check Cargo.lock or run 'cargo tree | grep gix-date' to see installed version

Check Version:

cargo tree | grep gix-date

Verify Fix Applied:

Verify gix-date version is 0.9.0 or higher in Cargo.lock

📡 Detection & Monitoring

Log Indicators:

  • Application crashes
  • Panic messages related to UTF-8 validation
  • Unexpected termination when processing time data

Network Indicators:

  • Unusual time format requests to APIs

SIEM Query:

source="application.logs" AND ("panicked" OR "UTF-8" OR "TimeBuf")

🔗 References

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