Bug 2427977 - CVE-2026-22028 ghc9.0: Preact: Arbitrary script execution via JSON serialization protection bypass [epel-10]
Summary: CVE-2026-22028 ghc9.0: Preact: Arbitrary script execution via JSON serializat...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: ghc9.0
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Jens Petersen
QA Contact:
URL:
Whiteboard: {"flaws": ["63935433-b5b5-47aa-9ade-5...
Depends On:
Blocks: CVE-2026-22028
TreeView+ depends on / blocked
 
Reported: 2026-01-08 15:59 UTC by Sandipan Roy
Modified: 2026-01-09 05:23 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-01-09 05:23:24 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Sandipan Roy 2026-01-08 15:59:43 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Comment 1 Jens Petersen 2026-01-09 05:23:24 UTC 
According to https://github.com/preactjs/preact/security/advisories/GHSA-36hm-qxxp-pg3m
only some 10.x versions are a vulnerable and ghc (haddock-api) is using 8.3.
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