CVE-2026-77087: Missing Authorization in paperclipai paperclip
Paperclip before 0.3.1 in default local_trusted mode fails to validate Host headers, allowing attackers to execute arbitrary commands via DNS rebinding. An attacker can craft a malicious webpage that, when visited by a developer running Paperclip locally, uses DNS rebinding to make authenticated API requests and execute commands through the process adapter.
AI Analysis
Technical Summary
CVE-2026-77087 is a critical vulnerability in Paperclip before version 0.3.1 where the application fails to validate Host headers in its default local_trusted mode. This missing authorization check enables attackers to perform DNS rebinding attacks, allowing them to craft malicious webpages that, when visited by a developer running Paperclip locally, can send authenticated API requests and execute arbitrary commands through the process adapter component.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands on the developer's local environment running vulnerable versions of Paperclip. This can lead to full compromise of the local system where Paperclip is running, as the attacker can bypass authorization by exploiting the Host header validation flaw combined with DNS rebinding.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid running vulnerable versions of Paperclip in local_trusted mode or restrict access to trusted networks only. Monitoring vendor communications for an official patch or temporary workaround is recommended.
CVE-2026-77087: Missing Authorization in paperclipai paperclip
Description
Paperclip before 0.3.1 in default local_trusted mode fails to validate Host headers, allowing attackers to execute arbitrary commands via DNS rebinding. An attacker can craft a malicious webpage that, when visited by a developer running Paperclip locally, uses DNS rebinding to make authenticated API requests and execute commands through the process adapter.
CVSS v4.0
Score 9.4critical
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-77087 is a critical vulnerability in Paperclip before version 0.3.1 where the application fails to validate Host headers in its default local_trusted mode. This missing authorization check enables attackers to perform DNS rebinding attacks, allowing them to craft malicious webpages that, when visited by a developer running Paperclip locally, can send authenticated API requests and execute arbitrary commands through the process adapter component.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands on the developer's local environment running vulnerable versions of Paperclip. This can lead to full compromise of the local system where Paperclip is running, as the attacker can bypass authorization by exploiting the Host header validation flaw combined with DNS rebinding.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid running vulnerable versions of Paperclip in local_trusted mode or restrict access to trusted networks only. Monitoring vendor communications for an official patch or temporary workaround is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-20T10:55:09.093Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8869e8acd9273b494e470f
Added to database: 08/21/2026, 15:08:24 UTC
Last enriched: 08/21/2026, 15:23:33 UTC
Last updated: 08/21/2026, 16:14:48 UTC
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.