Dashboard / CVE-2026-103866

CVE-2026-103866

HIGH
MEDIUM Priority: 0.02 BB Relevance: 75/100
Published: 2026-11-05 Modified: 2026-11-12 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: High
A: None

Description

Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Apache Sling Engine. The engine's query/form parser accepts non-standard percent-escapes, wrong charsets, and continues request processing on such errors. This issue affects Apache Sling Engine: before 3.0.4. Users are recommended to upgrade to version 3.0.4, which fixes the issue.

Weakness Classification (2)

Affected Software (3)

VendorProductVersion
Apache Software Foundation Apache Sling Engine 0 < 3.0.4
Apache Software Foundation Apache Sling Engine 0 < 3.0.4
Apache Software Foundation Apache Sling Engine 0 < 3.0.4

References & Advisories (2)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS — Exploitation Probability

0.33%
Raw Score 0.003270
Percentile 26.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00327
2026-11-12
0.00327
2026-11-10
0.00212
2026-11-09
0.00212
2026-11-08
0.00212
2026-11-07
0.00212
2026-11-06
0.00212

Intelligence Sources

mitre ref →
nvd ref →

External Links