CVE-2026-52490
Arbitrary code execution in libtiff tiffcrop via crafted TIFF (process_command_opts).
Is CVE-2026-52490 being exploited?
Not confirmed. CVE-2026-52490 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 0.40% probability of exploitation in the next 30 days.
How severe is CVE-2026-52490?
CVE-2026-52490 is rated Critical. 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-2026-52490?
Not known from our data. No patch reference has been recorded for CVE-2026-52490, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-52490 affect?
CVE-2026-52490 affects libtiff (tiffcrop tool), Any application or service that processes TIFF images with libtiff. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-52490?
Apply vendor patch when released; block/scan untrusted TIFFs; isolate image-processing hosts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can achieve arbitrary code execution in processes that parse crafted TIFFs with libtiff/tiffcrop, executing code as the application user.
Immediate action required