Search/CVE-2026-91859
● CVE

CVE-2026-91859

DiscoveredSep 15, 2026UpdatedSep 16, 2026

Affected versions of MISP can record incorrect access-log data for requests that terminate in an exception. Because CakeErrorController extends AppController, exception rendering runs the application startup path a second time. As a result, __accessMonitor() calls AccessLog::logRequest() twice for one HTTP request. The second deferred writer measures the error-controller execution instead of the original request and can overwrite the row created by the first pass. The corrupted fields include request duration, SQL query count, memory usage, and potentially the recorded query log. The bug was masked because the same model instance retained the ID of the first saved row, causing the later save to issue an UPDATE rather than insert an obvious duplicate row. Version affected: ≤2.5.45

CVSS v3.1
—
EPSS
0.47%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 16, 2026 → Sep 25, 2026
● 0.00pp
0.47% → 0.47% over 3 tracked changes
Connections
2 relationships
Timeline
disclosure → media coverage
Sep 15, 2026
Disclosure — published as a CVE record.