CVE-2026-74883
Sandbox bypass in openssl_encrypt plugin allows arbitrary file read/write via pathlib/io.
Is CVE-2026-74883 being exploited?
Not confirmed. CVE-2026-74883 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 0.26% probability of exploitation in the next 30 days.
How severe is CVE-2026-74883?
CVE-2026-74883 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-2026-74883?
Yes. A fix has been recorded for CVE-2026-74883. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-74883 affect?
CVE-2026-74883 affects openssl_encrypt plugin (<1.4.0), Applications and services using the plugin. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-74883?
Upgrade to openssl_encrypt >=1.4.0, or disable/remove plugin; audit files and rotate affected secrets.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Bypasses plugin sandbox to read and write arbitrary files via pathlib/io imports, enabling data exposure, tampering, and config/secret compromise.
Immediate action required
- affected< 1.4.0
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.