CVE-2026-28677HIGH 8.2EPSS p21.2%

CVE-2026-28677CVE-2026-28677

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.

Scoring

CVSS 3.18.2 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
EPSS0.30% probability of exploitation · percentile 21.2% · 2026-06-18T12:00:27Z
Published2026-03-06
Last modified2026-03-18

Underlying weaknesses· 1

CWE-918

References

  1. https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b
  2. https://github.com/OpenSift/OpenSift/commit/de99b9c
  3. https://github.com/OpenSift/OpenSift/pull/67
  4. https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha
  5. https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9

1

TypeTargetConfidenceTier
WeaknessServer-Side Request Forgery (SSRF)cwe-9180%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.