CVE-2026-29072
Discourse RCE via policy widget creation in posts (pre-patch).
Is CVE-2026-29072 being exploited?
Not confirmed. CVE-2026-29072 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-29072?
CVE-2026-29072 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-29072?
Yes. A fix has been recorded for CVE-2026-29072. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-29072 affect?
CVE-2026-29072 affects Discourse server (versions before 2026.1.2, 2026.2.1, 2026.3.0-latest.1). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-29072?
Upgrade to patched releases; if delaying, disable policy_enabled.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution on the server via crafted policy widgets; attacker could run arbitrary code.
Patch when possible
- affected>= 2026.1.0-latest and < 2026.1.2
- affected>= 2026.2.0-latest and < 2026.2.1
- affected= 2026.3.0-latest
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.