OGNL stricter-invocation block list bypass via java.lang.reflect reflection proxies

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0039, the 33rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 21 Oct 2026, 16:31 UTC Confirmed by GitHub Advisory Database
2. 31 Oct 2026, 14:16 UTC First seen by agentprime
3. 31 Oct 2026, 14:16 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-crwc-vw2r-qr6m
• OSV: GHSA-crwc-vw2r-qr6m
• github.com/orphan-oss/ognl/security/advisories/GHSA-crwc-vw2r-qr6m
• nvd.nist.gov/vuln/detail/CVE-2026-113730
• github.com/orphan-oss/ognl/commit/16396fa4b560221294c2ab9ca04b76b161115e7d
• github.com/orphan-oss/ognl/commit/f4c17f794754d516ea799c36ed8524d1b7fb98e2
• github.com/orphan-oss/ognl
• github.com/orphan-oss/ognl/releases/tag/OGNL_3_4_13

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.