CVE-2026-18258
Auth bypass in eScriptorium APIs lets authenticated users access and alter others' transcriptions.
Is CVE-2026-18258 being exploited?
Not confirmed. CVE-2026-18258 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-2026-18258?
CVE-2026-18258 is rated High with a CVSS score of 8.8. 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-2026-18258?
Not known from our data. No patch reference has been recorded for CVE-2026-18258, 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-2026-18258 affect?
CVE-2026-18258 affects Scripta/eScriptorium <= 26.04.1, Line API, LineTranscription API, VirtualCollection API, and 2 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-18258?
Apply vendor patch when available; restrict API access and audit user activity.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can read, modify and delete other users' transcription data via API primary-key misuse.
Patch when possible
- affected<= 26.4.1
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.