Security Digest · Vulnerability record

CVE-2024-2912: Insecure deserialization in BentoML

An insecure deserialization vulnerability exists in the BentoML framework, allowing remote code execution (RCE) by sending a specially crafted POST request.

CVSS 10.0 Critical EPSS 1.5% · p74

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
  • EPSS 1.5%, percentile 74: FIRST’s model estimates a 1.5% chance of exploitation activity in the next 30 days, higher than 74% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
  • Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
  • Only applies if your dependency tree includes bentoml (PyPI) < 1.2.5, fixed in 1.2.5. Check your lockfile, including transitive dependencies.

What it is

An insecure deserialization vulnerability exists in the BentoML framework, allowing remote code execution (RCE) by sending a specially crafted POST request. By exploiting this vulnerability, attackers can execute arbitrary commands on the server hosting the BentoML application. The vulnerability is triggered when a serialized object, crafted to execute OS commands upon deserialization, is sent to any valid BentoML endpoint. This issue poses a significant security risk, enabling attackers to compromise the server and potentially gain unauthorized access or control.

From the GitHub advisory

An insecure deserialization vulnerability exists in the BentoML framework, allowing remote code execution (RCE) by sending a specially crafted POST request. By exploiting this vulnerability, attackers can execute arbitrary commands on the server hosting the BentoML application. The vulnerability is triggered when a serialized object, crafted to execute OS commands upon deserialization, is sent to any valid BentoML endpoint. This issue poses a significant security risk, enabling attackers to compromise the server and potentially gain unauthorized access or control.

Weakness type: CWE-1188.

Product: bentoml (PyPI) · Assigned by: @huntr_ai · Published: 2024-04-16

Affected and fixed versions

EcosystemPackageVulnerableFirst fixed
PyPIbentoml< 1.2.51.2.5
VendorProductAffected versions (per CVE record)
bentomlbentoml/bentoml1.2.0 <= 1.2.4

Severity scores

Scored byCVSSScoreVector
@huntr_ai3.110 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
GitHub3.19.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack vector: network (remotely reachable)
  • Attack complexity: low
  • Privileges required: none (no login)
  • User interaction: none
  • Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
  • CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
  • FIRST EPSS (model of 2026-10-21): 1.51% probability of exploitation activity in the next 30 days; percentile 74.

Timeline

  • — CVE record published by @huntr_ai
  • — GitHub-reviewed advisory GHSA-hvj5-mvw9-93j3 published (critical)
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

  1. GitHub Advisory GHSA-hvj5-mvw9-93j3 github.com
  2. CVE.org record CVE-2024-2912 cve.org
  3. NVD entry CVE-2024-2912 nvd.nist.gov

Other references from the CVE record and advisory

  1. huntr.com huntr.com
  2. github.com github.com

Critical PyPI advisories · Today’s Security Digest