CVE-2026-12600
High-severity DoS in Poppler/Innodata JPX decoder causing pdftoppm OOM and crash.
Is CVE-2026-12600 being exploited?
Not confirmed. CVE-2026-12600 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 0.31% probability of exploitation in the next 30 days.
How severe is CVE-2026-12600?
CVE-2026-12600 is rated High with a CVSS score of 8.7. 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-2026-12600?
Not known from our data. No patch reference has been recorded for CVE-2026-12600, 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-2026-12600 affect?
CVE-2026-12600 affects Poppler (Innodata Labs JPX fork), pdftoppm, Applications using Innodata JPX decoder, PDF processing pipelines. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-12600?
Update Poppler/pdftoppm when patched; block or sandbox untrusted PDFs; limit pdftoppm memory.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can craft JPXDecode images in PDFs to force excessive memory allocation, causing pdftoppm OOM and denial of service.
Patch when possible
- affected< 25/08/2026
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.