CVE-2024-23838Network attack vector

Information disclosure via unvalidated payment identifiers

Published Jan 30, 2024 · Updated Aug 23, 2024

SSRF in TrueLayer.NET before 1.6.0 allows remote attackers to read unexpected local or internet resources through SDK requests. The payment and payment-provider lookup paths accepted attacker-controlled identifiers as absolute or backslash-prefixed URLs, and ApiClient sent the resulting URI without checking it against configured TrueLayer base addresses. Exploitation requires an integrating application to pass untrusted values into those SDK methods; resulting requests can disclose resources reachable from that application's network context.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in TrueLayer.NET before 1.6.0 allows remote attackers to read unexpected local or internet resources through SDK requests. The payment and payment-provider lookup paths accepted attacker-controlled identifiers as absolute or backslash-prefixed URLs, and ApiClient sent the resulting URI without checking it against configured TrueLayer base addresses. Exploitation requires an integrating application to pass untrusted values into those SDK methods; resulting requests can disclose resources reachable from that application's network context.

The record

CVE
CVE-2024-23838
Published
Jan 30, 2024
Updated
Aug 23, 2024
Vendor
TrueLayer
Product
TrueLayer.NET
Classifications
CWE-918
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 23, 2024Record 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=< 1.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TrueLayer · TrueLayer.NETversion=< 1.6.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.6GitHub, Inc.CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

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-918Server-Side Request Forgery (SSRF)

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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