CVE-2026-28677

OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal access

HIGH
8.2
CVSS Score
Published: March 6, 2026 at 04:23 AM UTC
Updated: June 17, 2026 at 10:28 AM UTC
1 product affected across 1 vendorOpenSift

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Severity
HIGH8.2
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.6.3v < 1.6.3-alpha
Affected range stops below 1.6.3-alpha, so it looks safe — our inference, not a vendor statement

References (5)

x_refsource_CONFIRMPatchVendor Advisory
Source: cverecord
https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/OpenSift/OpenSift/pull/67
x_refsource_MISCPatch
Source: cverecord
https://github.com/OpenSift/OpenSift/commit/de99b9c
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-918

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