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CVE-2021-41803

HIGH
7.1
CVSS Score
Published: September 23, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:08 AM UTC
1 product affected across 1 vendorConsul

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Severity
HIGH7.1
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

HashiCorp Consul 1.8.1 up to 1.11.8, 1.12.4, and 1.13.1 do not properly validate the node or segment names prior to interpolation and usage in JWT claim assertions with the auto config RPC. Fixed in 1.11.9, 1.12.5, and 1.13.2."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Consul· Hashicorp
95%
1.8.1 ≤ v < 1.11.91.12.41.13.1
Affected range stops below 1.11.9, so it looks safe — our inference, not a vendor statement

References (5)

Vendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec-2022-19-consul-auto-config-jwt-authorization-missing-input-validation/44627
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.hashicorp.com/blog/category/consul

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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