8.3

CVE-2026-84196: Kyverno before 1.18.0 Server-Side Request Forgery via apiCall

Awaiting analysis
AliasesCGA-m527-8j8c-h5q7CGA-xpmc-43g2-84v7GHSA-qr4g-8hrp-c4rw
Published 01-09-2026Last modified 01-09-2026

Vulnerability summary

CVE-2026-84196 is a high (CVSS 8.3) Server-Side Request Forgery vulnerability in kyverno. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 29.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.3/10
010
High · v4.0 (CVE.org)
EPSS score
0.35%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-9W26-CHJC-GX56

Timeline

  1. 01-09-2026
    PublishedVulnerability first disclosed.
  2. 01-09-2026
    Last modifiedVulnerability information updated.

Description

Kyverno before 1.18.0 contains a server-side request forgery vulnerability in apiCall.service.url that allows authenticated users to send arbitrary HTTP requests by injecting user-controlled input through variable substitution. Attackers can target internal services, cloud metadata endpoints, and loopback addresses, with response data reflected in admission error messages enabling non-blind data exfiltration.

CVSS metrics

7 scores · 5 sources · 2 versions

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.35% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard3 products
  • kyverno-1.15All versions (No fix recorded)
  • kyverno-1.16All versions (No fix recorded)
  • kyverno-1.17All versions (No fix recorded)
Github.com/kyverno1 product
  • kyverno≤ 1.17.1 | All versions (No fix recorded)
Kyverno1 product
Wolfi1 product
  • kyverno-1.17All versions (No fix recorded)

4 vendors · 6 products

References

5 links