CVE-2026-28514
CRITICAL auth bypass allows login as any user with a known username.
Is CVE-2026-28514 being exploited?
Not confirmed. CVE-2026-28514 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 0.50% probability of exploitation in the next 30 days.
How severe is CVE-2026-28514?
CVE-2026-28514 is rated Critical with a CVSS score of 9.3. 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-2026-28514?
Yes. A fix has been recorded for CVE-2026-28514. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-28514 affect?
CVE-2026-28514 affects Rocket.Chat (ddp-streamer) pre-patched versions: 7.8.6, 7.9.8, 7.10.7, 7.11.4, 7.12.4, 7.13.3, 8.0.0 or older. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-28514?
Upgrade to patched releases; rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Account takeover via missing await in password check; attacker can log in as any known/guessable user.
Immediate action required
- affected< 7.8.6
- affected< 7.9.8
- affected< 7.10.7
- affected< 7.11.4
- affected< 7.12.4
- affected< 7.13.3
- affected< 8.0.0
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.