---
title: "CVE-2026-115477: obsidian-tc - Authentication Bypass"
description: "obsidian-tc 1.13.0 to 1.31.4 contains an authentication bypass caused by improper validation of elicitation form approval state in dispatch-gated tool calls, letting attacker-controlled clients execute destructive vault operations without human approval, exploit requires client echoing valid requestState."
url: https://panop.io/threat-heartbeat/CVE-2026-115477/
---

# CVE-2026-115477 obsidian-tc - Authentication Bypass

obsidian-tc 1.13.0 to 1.31.4 contains an authentication bypass caused by improper validation of elicitation form approval state in dispatch-gated tool calls, letting attacker-controlled clients execute destructive vault operations without human approval, exploit requires client echoing valid requestState.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.50% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-115477)

## Details

Type

Authentication Bypass

Impact

Privilege Escalation, Data Tampering

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/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

23 October 2026

Updated

25 October 2026

Weakness

[CWE-285](https://cwe.mitre.org/data/definitions/285.html)

## Vendor fix

Update to version 1.31.4 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-2026-115477](https://nvd.nist.gov/vuln/detail/CVE-2026-115477)
- [https://github.com/The-40-Thieves/obsidian-tc/issues/967](https://github.com/The-40-Thieves/obsidian-tc/issues/967)
- [https://github.com/The-40-Thieves/obsidian-tc/pull/969](https://github.com/The-40-Thieves/obsidian-tc/pull/969)
- [https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.31.4](https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.31.4)
- [https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-737x-cwfr-5vvc](https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-737x-cwfr-5vvc)
- [https://github.com/The-40-Thieves/obsidian-tc/blob/v1.31.4/CHANGELOG.md](https://github.com/The-40-Thieves/obsidian-tc/blob/v1.31.4/CHANGELOG.md)
- [https://github.com/The-40-Thieves/obsidian-tc/commit/101c91c656e2c2b88bcf3696a5da035f8c032c71](https://github.com/The-40-Thieves/obsidian-tc/commit/101c91c656e2c2b88bcf3696a5da035f8c032c71)

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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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