CVE-2026-43646 | Apache Wicket: crafted URLs can bypass PackageResourceGuard

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Wicket. This issue affects Apache Wicket: from 8.0.0 through 8.17.0, from 9.0.0 through 9.22.0, from 10.0.0 through 10.8.0. Users are recommended to upgrade to version 10.9.0, which fixes the issue.

Published: 2026-05-06 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-43646 is rated Low Risk (36.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-43646

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-07 0.02% 0.06% +0.04%
2 2026-05-06 — 0.02% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-43646

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-43646

GitHub Security Advisory for CVE-2026-43646

GHSA-jvv4-8wxx-m5r6 · Severity: high · Ecosystem: maven — Apache Wicket has an Exposure of Sensitive Information to an Unauthorized Actor vulnerability

Affected software / configurations for CVE-2026-43646

Vendor Product Version Raw CPE
apache wicket >= 8.0.0, <= 8.17.0 cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
apache wicket >= 9.0.0, <= 9.22.0 cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
apache wicket >= 10.0.0, < 10.9.0 cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*

References for CVE-2026-43646

cvelogic Threat Intelligence