Medium · CVSS 5.3CVE-2026-54086

SLE API for Java: Uncontrolled Memory Allocation / handled exception leading to Denial of ServiceCVE-2026-54086

Answer in brief

CVE-2026-54086 records a Medium severity (CVSS 5.3) vulnerability in SLE API for Java: Uncontrolled Memory Allocation / handled exception leading to Denial of Service. The current sources do not mark it as known exploited. The current feed maps esa/sleapi-j (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 13, 2026Updated Oct 13, 2026Source checked Oct 13, 2026First seen by HOL Oct 13, 2026Material review Oct 13, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps esa/sleapi-j (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
esa/sleapi-jgeneric	<5.1.7	5.1.7

Recommended response

Check inventory. Check lockfiles and deployed manifests for esa/sleapi-j.
Review the reported fix. Update esa/sleapi-j to 5.1.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 13, 2026

Sources and claim methodology

Upstream source description

SLE API for Java is an implementation of CCSDS Space Link Extension Services. Prior to 5.1.7, the ISP1 PDU handling path decodes an attacker-controlled body length and allocates a byte array without an upper bound, while malformed or truncated input can also terminate reads unexpectedly, allowing an unauthenticated client of the SLE listening service to trigger exceptions, resource leakage, and denial of service. This issue is fixed in version 5.1.7.

Quoted source text, attributed separately from HOL analysis.