# CVE-2026-87993: Consul-template vulnerable to an information disclosure issue in error handling

> CVE-2026-87993: Consul-template vulnerable to an information disclosure issue in error handling. CVSS 7.7 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-87993
Last updated: 2026-09-10T20:17:31Z

- Published: 2026-09-10 19:00 UTC · Updated: 2026-09-10 20:17 UTC · Assigner: HashiCorp
- CVSS: 7.7 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS: 0.38%, 31th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-532

## Description

The consul-template library is vulnerable to an information disclosure issue in its error handling path that may allow Vault secret values to appear in template error messages, log output, and downstream surfaces such as Nomad task events. This vulnerability (CVE-2026-87993) is fixed in consul-template 0.43.0.

## Affected vendors and products

- HashiCorp: Tooling

## Tracked companies

- [HashiCorp](https://rewindex.com/company/hashicorp.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-87993)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-87993)
- [https://discuss.hashicorp.com/t/hcsec-2026-38-consul-template-vulnerable-to-an-information-disclosure-issue-in-error-handling/77740](https://discuss.hashicorp.com/t/hcsec-2026-38-consul-template-vulnerable-to-an-information-disclosure-issue-in-error-handling/77740)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-87993 · Markdown: https://rewindex.com/cve/CVE-2026-87993.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-87993 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:05:40.426Z