CVE-2026-2808Network attack vector

Arbitrary file read via unrestricted token path

Published Mar 11, 2026 · Updated Mar 11, 2026

Arbitrary file read in affected HashiCorp Consul and Consul Enterprise releases allows remote authenticated users to read server files. The Vault Connect CA provider accepts operator-controlled token_path values without restricting them to service-account token directories, reads the referenced file, and transmits its contents to Vault as JWT data. Exploitation requires operator write permission and a Connect CA configuration that uses Vault with Kubernetes authentication; disclosure is limited to files readable by the Consul server process.

CVSS severity6.8
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file read in affected HashiCorp Consul and Consul Enterprise releases allows remote authenticated users to read server files. The Vault Connect CA provider accepts operator-controlled token_path values without restricting them to service-account token directories, reads the referenced file, and transmits its contents to Vault as JWT data. Exploitation requires operator write permission and a Connect CA configuration that uses Vault with Kubernetes authentication; disclosure is limited to files readable by the Consul server process.

The record

CVE
CVE-2026-2808
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
HashiCorp
Product
Consul Enterprise
Classifications
CWE-59, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.22.5 changes=[{"at":"1.21.11","status":"unaffected"},{"at":"1.18.21","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

HashiCorp · Consul Enterpriseversion=0 <1.22.5 changes=[{"at":"1.21.11","status":"unaffected"},{"at":"1.18.21","status":"unaffected"}]
HashiCorp · Consulversion=0 <1.22.5

Published CVSS scores

6.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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