What is the CVSS score of CVE-2026-28217?

CVE-2026-28217 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Hoppscotch are affected by CVE-2026-28217?

Organizations using hoppscotch should be aware of notable risk from CVE-2026-28217, a missing authorization vulnerability rated CVSS 6.5. Attackers could gain access beyond their authorized level.

Is there a public PoC exploit available for CVE-2026-28217?

Yes, a public proof-of-concept exploit is available for CVE-2026-28217. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-28217?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Hoppscotch CVE-2026-28217

MEDIUM

Missing Authorization (CWE-862)

2026-02-26 security-advisories@github.com

Authentication Bypass Hoppscotch

6.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:56 vuln.today

PoC Detected

Feb 27, 2026 - 15:50 vuln.today

Public exploit code

CVE Published

Feb 26, 2026 - 23:16 nvd

MEDIUM 6.5

DescriptionGitHub Advisory

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the userCollection GraphQL query accepts an arbitrary collection ID and returns the full collection data - including title, type, and the serialized data field containing HTTP requests with headers and potentially secrets - to any authenticated user, without verifying that the requesting user owns the collection. This is an Insecure Direct Object Reference (IDOR) caused by a missing authorization check that exists on every other operation in the same resolver. Version 2026.2.0 fixes the issue.

AnalysisAI

hoppscotch is an open source API development ecosystem. [CVSS 6.5 MEDIUM]

Technical ContextAI

Classified as CWE-862 (Missing Authorization). Affects Hoppscotch. hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the userCollection GraphQL query accepts an arbitrary collection ID and returns the full collection data — including title, type, and the serialized data field containing HTTP requests with headers and potentially secrets — to any authenticated user, without verifying that the requesting user owns the collection. This is an Insecure Direct Object Reference (IDOR) caused by a missing authorization check that ex