CVE-2025-48795Network attack vector

Service crash and log disclosure via stream stringification

Published Jul 15, 2025 · Updated Nov 4, 2025

Resource exhaustion in Apache CXF 3.5.10, 3.6.5, 4.0.6, and 4.1.0 allows remote attackers to crash services via large streams. DelayedCachedOutputStreamCleaner concatenates an unclosed CachedOutputStream into a warning, invoking toString() to read the entire temporary file into heap and copy its plaintext contents into logs. Reachability requires an unclosed large stream; encrypted temporary-file caching still exposes cached credentials in plaintext logs, while memory exhaustion terminates the hosting JVM service.

CVSS severity5.6
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Apache CXF 3.5.10, 3.6.5, 4.0.6, and 4.1.0 allows remote attackers to crash services via large streams. DelayedCachedOutputStreamCleaner concatenates an unclosed CachedOutputStream into a warning, invoking toString() to read the entire temporary file into heap and copy its plaintext contents into logs. Reachability requires an unclosed large stream; encrypted temporary-file caching still exposes cached credentials in plaintext logs, while memory exhaustion terminates the hosting JVM service.

The record

CVE
CVE-2025-48795
Published
Jul 15, 2025
Updated
Nov 4, 2025
Vendor
The Apache Software Foundation
Product
Apache CXF
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.5.10 <3.5.11
  2. Affected versionversion=3.6.5 <3.6.6
  3. Affected versionversion=4.0.6 <4.0.7
  4. Affected versionversion=4.1.0 <4.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache CXFversion=3.5.10 <3.5.11; version=3.6.5 <3.6.6; version=4.0.6 <4.0.7; version=4.1.0 <4.1.1

Published CVSS scores

5.6GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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