CVE-2023-32786Public exploitNetwork attack vector

Server-side request forgery via unrestricted APIChain URLs

Published Oct 20, 2023 · Updated Sep 12, 2024

Server-side request forgery in LangChain APIChain before 0.0.329 allows remote attackers to retrieve data from arbitrary URLs via prompt injection. APIChain accepts an LLM-generated URL and passes it directly to requests_wrapper.get or aget without restricting its scheme and domain. An application must expose attacker-controlled prompts to APIChain; successful abuse reads resources reachable by the server and can feed their content into downstream tasks.

CVSS severity7.5
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in LangChain APIChain before 0.0.329 allows remote attackers to retrieve data from arbitrary URLs via prompt injection. APIChain accepts an LLM-generated URL and passes it directly to requests_wrapper.get or aget without restricting its scheme and domain. An application must expose attacker-controlled prompts to APIChain; successful abuse reads resources reachable by the server and can feed their content into downstream tasks.

The record

CVE
CVE-2023-32786
Published
Oct 20, 2023
Updated
Sep 12, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

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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