IBM WebSphere Application Server 8.5/9.0 LTPA neutralization for logs

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.5$25k-$100k0.40-

Summaryinfo

A vulnerability, which was classified as problematic, has been found in IBM WebSphere Application Server 8.5/9.0. Impacted is an unknown function of the component LTPA Handler. Performing a manipulation results in neutralization for logs. This vulnerability is cataloged as CVE-2026-11538. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in IBM WebSphere Application Server 8.5/9.0. This affects an unknown functionality of the component LTPA Handler. The manipulation with an unknown input leads to a neutralization for logs vulnerability. CWE is classifying the issue as CWE-117. The product does not neutralize or incorrectly neutralizes output that is written to logs. This is going to have an impact on integrity. The summary by CVE is:

IBM WebSphere Application Server 9.0 and 8.5 is affected by a log injection vulnerability through crafted LTPA token cookies.

The advisory is shared at ibm.com. This vulnerability is uniquely identified as CVE-2026-11538 since 06/08/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 09/18/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (ibm): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Neutralization for logs
CWE: CWE-117 / CWE-116 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/08/2026 CVE reserved
09/18/2026 +102 days Advisory disclosed
09/18/2026 +0 days VulDB entry created
09/18/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Status: Confirmed

CVE: CVE-2026-11538 (🔒)
GCVE (CVE): GCVE-0-2026-11538
GCVE (VulDB): GCVE-100-407709

Entryinfo

Created: 09/18/2026 21:19
Changes: 09/18/2026 21:19 (62)
Complete: 🔍
Cache ID: 216::103

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