CVE-2026-28677
OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal access
Description
OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Prior to version 1.6.3-alpha, the URL ingest pipeline accepted user-controlled remote URLs with incomplete destination restrictions. Although private/local host checks existed, missing restrictions for credentialed URLs, non-standard ports, and cross-host redirects left SSRF-class abuse paths in non-localhost deployments. This issue has been patched in version 1.6.3-alpha.
INFO
Published Date :
March 6, 2026, 5:16 a.m.
Last Modified :
March 18, 2026, 12:59 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update OpenSift to version 1.6.3-alpha.
- Apply vendor patches or updates.
- Restrict URL ingest destinations.
- Implement stricter host and port validation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28677.
| URL | Resource |
|---|---|
| https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b | Patch |
| https://github.com/OpenSift/OpenSift/commit/de99b9c | Patch |
| https://github.com/OpenSift/OpenSift/pull/67 | Issue Tracking Patch |
| https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha | Release Notes |
| https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9 | Vendor Advisory Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28677 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28677
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28677 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28677 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 18, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:opensift:opensift:*:*:*:*:*:python:*:* versions up to (excluding) 1.6.3 Added Reference Type GitHub, Inc.: https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b Types: Patch Added Reference Type GitHub, Inc.: https://github.com/OpenSift/OpenSift/commit/de99b9c Types: Patch Added Reference Type GitHub, Inc.: https://github.com/OpenSift/OpenSift/pull/67 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9 Types: Patch, Vendor Advisory -
New CVE Received by [email protected]
Mar. 06, 2026
Action Type Old Value New Value Added Description OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Prior to version 1.6.3-alpha, the URL ingest pipeline accepted user-controlled remote URLs with incomplete destination restrictions. Although private/local host checks existed, missing restrictions for credentialed URLs, non-standard ports, and cross-host redirects left SSRF-class abuse paths in non-localhost deployments. This issue has been patched in version 1.6.3-alpha. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L Added CWE CWE-918 Added Reference https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b Added Reference https://github.com/OpenSift/OpenSift/commit/de99b9c Added Reference https://github.com/OpenSift/OpenSift/pull/67 Added Reference https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha Added Reference https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9