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Fencer Vulns
medium 5.9

CVE-2022-43756 json

Rancher/Wrangler: Denial of service when processing Git credentials

published 2023-01-25 3 y ago modified 2026-06-17 4 mo ago also GHSA-8fcj-gf77-47mg , GO-2023-1515 , EUVD-2023-0407

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/rancher/wrangler 0.7.4-security1, 0.8.5-security1, 0.8.11, 1.0.1
  • suse wrangler 0.7.4, 0.8.5

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

Affected packages

ecosystem package affected fixed in
go github.com/rancher/wrangler
<0.7.4-security1
>=0.8.0, <0.8.5-security1
>=1.0.0, <1.0.1
>=0.8.6, <0.8.11
0.7.4-security1
0.8.5-security1
1.0.1
0.8.11

Affected products

  • SUSE Rancher

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
  • CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.