CVE-2026-27169: OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI

Routine

HIGH 8.9UPGRADE

CVE-2026-27169 is a high-severity flaw (CVSS 8.9) affecting opensift. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Versions 1.1.2-alpha and below render untrusted user/model content in chat tool UI surfaces using unsafe HTML interpolation patterns, leading to XSS. Stored content can execute JavaScript when later viewed in authenticated sessions. An attacker who can influence stored study/quiz/flashcard content could trigger script execution in a victim’s br

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.9 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-79, CWE-116
Published	2026-02-21
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: opensift

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-21 00:16 UTCPublished CVE record published
2026-06-17 10:26 UTCUpdated Record last modified

opensift opensift UPGRADE

Affected: < 1.1.3

Fixed in: 1.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show opensift

2. UPGRADE to 1.1.3

pip install --upgrade "opensift>=1.1.3"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27169?

opensift: upgrade to 1.1.3. Exact commands for each OS are on this page.

Is CVE-2026-27169 being exploited?

CVE-2026-27169 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27169 affect?

CVE-2026-27169 affects opensift. Severity is high (CVSS 8.9). OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Versions 1.1.2-alpha and below render untrusted user/model content in chat tool UI surfaces using unsafe HTML interpolation patterns, le

How urgent is CVE-2026-27169?

Priority 39/100. High severity

Related CVEs

CVE-2026-28677 HIGH 8.2 UPGRADE OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI
CVE-2026-28676 HIGH 8.8 UPGRADE OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI
CVE-2026-28675 MEDIUM 5.3 UPGRADE OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI
CVE-2026-27189 MEDIUM 6.6 UPGRADE OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI
CVE-2026-27170 HIGH 7.1 UPGRADE OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI

References

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