CVE-2023-38896

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.5%, top 28% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An issue in Harrison Chase langchain v.0.0.194 and before allows a remote attacker to execute arbitrary code via the from_math_prompt and from_colored_object_prompt functions.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
71.9%
KEV
Not listed

Published

August 15, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jun 6, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
https://twitter.com/llm_sec/status/1668711587287375876
github_pr

Mitigate issue #5872 (Prompt injection -> RCE in PAL chain)

Fix merged in hwchase17/langchain PR #6003 on 2023-07-18 — awaiting tagged release

https://github.com/hwchase17/langchain/pull/6003
generic

Prompt injection which leads to arbitrary code execution in `langchain.chains.PALChain` · Issue #5872 · langchain-ai/langchain · GitHub

https://github.com/hwchase17/langchain/issues/5872

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
langchain0.0.1 ... 0.0.99rc0 (196 versions)0.0.195—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-07-23 02:25 UTCEG score recompute
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-38896?
CVE-2023-38896 is a critical vulnerability published on August 15, 2023. An issue in Harrison Chase langchain v.0.0.194 and before allows a remote attacker to execute arbitrary code via the frommathprompt and fromcoloredobject_prompt functions.
When was CVE-2023-38896 disclosed?
CVE-2023-38896 was first published in the National Vulnerability Database on August 15, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-38896 actively exploited?
CVE-2023-38896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-38896?
CVE-2023-38896 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-38896?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38896, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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