---
title: "CVE-2026-108265: Enclave OS Mini - Authentication Bypass"
description: "Enclave OS Mini prior to wasm-v0.40.0 contains a replay attack vulnerability caused by omission of a value bound to the active TLS session in RA-TLS challenge certificate path, letting attackers relay genuine quotes to impersonate enclaves, exploit requires attacker to obtain enclave TLS private key."
url: https://panop.io/threat-heartbeat/CVE-2026-108265/
---

# CVE-2026-108265 Enclave OS Mini - Authentication Bypass

Enclave OS Mini prior to wasm-v0.40.0 contains a replay attack vulnerability caused by omission of a value bound to the active TLS session in RA-TLS challenge certificate path, letting attackers relay genuine quotes to impersonate enclaves, exploit requires attacker to obtain enclave TLS private key.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.12% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-108265)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

9 October 2026

Updated

15 October 2026

Weakness

[CWE-346](https://cwe.mitre.org/data/definitions/346.html)

## Vendor fix

Update to wasm-v0.40.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-108265](https://nvd.nist.gov/vuln/detail/CVE-2026-108265)
- [https://github.com/Privasys/enclave-os-mini/commit/9f541c849ef733d2df2851a666f359d01dcdcb8e](https://github.com/Privasys/enclave-os-mini/commit/9f541c849ef733d2df2851a666f359d01dcdcb8e)
- [https://github.com/Privasys/enclave-os-mini/releases/tag/wasm-v0.40.0](https://github.com/Privasys/enclave-os-mini/releases/tag/wasm-v0.40.0)
- [https://github.com/Privasys/enclave-os-mini/security/advisories/GHSA-49qm-4pj3-w2c6](https://github.com/Privasys/enclave-os-mini/security/advisories/GHSA-49qm-4pj3-w2c6)
- [https://privasys.org/blog/binding-attestation-to-the-tls-session](https://privasys.org/blog/binding-attestation-to-the-tls-session)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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