4.2

CVE-2026-15970: hashicorp consul

CVSS: 4.2v3.1MediumAwaiting analysis
AliasesUBUNTU-CVE-2026-15970DEBIAN-CVE-2026-15970CGA-389c-x6rr-jppj
Published 07-08-2026Last modified 10-08-2026
Open JSON

Vulnerability summary

CVE-2026-15970 is a medium (CVSS 4.2) vulnerability in hashicorp consul. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.2/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-R469-782P-69Q7

Timeline

  1. 07-08-2026
    PublishedVulnerability first disclosed.
  2. 10-08-2026
    Last modifiedVulnerability information updated.

Description

Consul Community Edition and Consul Enterprise 1.20.1 through 2.0.2 are vulnerable to an L7 intention authorization bypass when a service proxy is configured with a custom public listener. An authenticated mesh workload may reach HTTP paths that are blocked by a path-based deny intention. This vulnerability, CVE-2026-15970, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.05 pp

From 0.16% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard4 products
  • consul-1.22All versions (No fix recorded)
  • consul-2.0< 2.0.4-r0
  • consul-fips-1.22All versions (No fix recorded)
  • consul-fips-2.0< 2.0.3-r0
Hashicorp2 products
Debian1 product
  • consulAll versions (No fix recorded)
Ubuntu1 product
  • consulAll versions (No fix recorded)

4 vendors · 8 products

References

7 links