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01 Record

CVE-2026-4525

Vault Token Leaked to Backends via Authorization: Bearer Passthrough Header

HighPUBLISHEDCNA: HashiCorp
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
View raw JSON

02 Description

Vault Token Leaked to Backends via Authorization: Bearer Passthrough Header

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.40% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 34.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-25.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-17 03:00Z6 MO AGO
Last updated
2026-07-15 00:52Z3 MO AGO
Reserved
2026-03-20
Assigning CNA
HashiCorp
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-201Insertion of Sensitive Information Into Sent DataBase
Data version
5.2
Document digest
a1acd2281e35b8706c324ce2acdf09dfea90e177878bdaef775f4ed68a326f47

05 Affected products

VendorProductVersionsPlatforms
HashiCorpVault0.11.2 to < 2.0.064 bit, 32 bit, x86, ARM, MacOS, Windows, Linux
HashiCorpVault Enterprise0.11.2 to < 2.0.064 bit, 32 bit, x86, ARM, MacOS, Windows, Linux

06 References