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Back to active CVEs
High · CVSS 7.1CVE-2026-82280

Quivr Prompt Endpoints Missing Ownership ValidationCVE-2026-82280

Answer in brief

CVE-2026-82280 records a High severity (CVSS 7.1) vulnerability in Quivr Prompt Endpoints Missing Ownership Validation. The current sources do not mark it as known exploited. The current feed maps QuivrHQ/quivr (generic), QuivrHQ/quivr (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Sep 24, 2026Source checked Oct 12, 2026First seen by HOL Aug 28, 2026Material review Sep 24, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.1
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps QuivrHQ/quivr (generic), QuivrHQ/quivr (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
QuivrHQ/quivrgeneric0Not reported
QuivrHQ/quivrgeneric>=0 <=0.0.322Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for QuivrHQ/quivr, QuivrHQ/quivr.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 28, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Shaark 1.2.13 through 1.2.44 Missing Authorization via API Update and Delete RoutesAlso CWE-639
  • Super Productivity: SuperSync E2EE setup uploads and stores all user operations in plaintext before password is setSame generic ecosystem
  • Nango: Production flow RBAC bypass on private flow-read routesSame generic ecosystem
  • QGIS: Stored XSS in WFS3 getFeatures HTML page via unescaped feature attribute valuesSame generic ecosystem
  • IBM Maximo Application Suite Information DisclosureSame generic ecosystem
  • Netcore NR268 DHCP dhcp_dynamicip_show.cgi eval cross site scriptingSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-639
Source
CVE List V5
Source checked
Oct 12, 2026
References
5 linked sources
Open source record