id: PYSEC-2026-1219
published: "2026-07-07T14:34:57.864964Z"
modified: "2026-07-07T17:23:51.037842Z"
aliases:
- CVE-2024-9056
- GHSA-hw8j-hw49-752c
summary: BentoML Denial of Service (DoS) via Multipart Boundary
details: BentoML version v1.3.4post1 is vulnerable to a Denial of Service (DoS) attack. The vulnerability can be exploited by appending characters, such as dashes (-), to the end of a multipart boundary in an HTTP request. This causes the server to continuously process each character, leading to excessive resource consumption and rendering the service unavailable. The issue is unauthenticated and does not require any user interaction, impacting all users of the service.
affected:
- package:
    name: bentoml
    ecosystem: PyPI
    purl: pkg:pypi/bentoml
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - last_affected: 1.4.5
  versions:
  - 0.0.1
  - 0.0.2
  - 0.0.3
  - 0.0.5
  - 0.0.6a0
  - 0.0.7
  - 0.0.7.dev0
  - 0.0.8
  - 0.0.8.post1
  - 0.0.9
  - 0.1.1
  - 0.1.2
  - 0.10.0
  - 0.10.1
  - 0.11.0
  - 0.11.dev0
  - 0.12.0
  - 0.12.1
  - 0.13.0
  - 0.13.1
  - 0.13.2
  - 0.2.0
  - 0.2.1
  - 0.2.2
  - 0.3.0
  - 0.3.1
  - 0.3.3
  - 0.3.4
  - 0.4.0
  - 0.4.1
  - 0.4.2
  - 0.4.3
  - 0.4.4
  - 0.4.5
  - 0.4.7
  - 0.4.8
  - 0.4.9
  - 0.5.0
  - 0.5.1
  - 0.5.2
  - 0.5.3
  - 0.5.4
  - 0.5.5
  - 0.5.6
  - 0.5.7
  - 0.5.8
  - 0.6.0
  - 0.6.1
  - 0.6.2
  - 0.6.3
  - 0.7.0
  - 0.7.1
  - 0.7.2
  - 0.7.3
  - 0.7.4
  - 0.7.5
  - 0.7.6
  - 0.7.7
  - 0.7.8
  - 0.8.0
  - 0.8.1
  - 0.8.2
  - 0.8.3
  - 0.8.4
  - 0.8.5
  - 0.8.6
  - 0.9.0
  - 0.9.0rc0
  - 0.9.1
  - 0.9.2
  - 1.0.0
  - 1.0.0.dev0
  - 1.0.0.dev1
  - 1.0.0a1
  - 1.0.0a2
  - 1.0.0a3
  - 1.0.0a4
  - 1.0.0a5
  - 1.0.0a6
  - 1.0.0a7
  - 1.0.0rc0
  - 1.0.0rc1
  - 1.0.0rc2
  - 1.0.0rc3
  - 1.0.10
  - 1.0.11
  - 1.0.12
  - 1.0.13
  - 1.0.14
  - 1.0.15
  - 1.0.16
  - 1.0.17
  - 1.0.18
  - 1.0.19
  - 1.0.2
  - 1.0.20
  - 1.0.21
  - 1.0.22
  - 1.0.23
  - 1.0.24
  - 1.0.25
  - 1.0.3
  - 1.0.4
  - 1.0.5
  - 1.0.6
  - 1.0.7
  - 1.0.8
  - 1.0.9
  - 1.1.0
  - 1.1.1
  - 1.1.10
  - 1.1.11
  - 1.1.2
  - 1.1.3
  - 1.1.4
  - 1.1.5
  - 1.1.6
  - 1.1.7
  - 1.1.8
  - 1.1.9
  - 1.2.0
  - 1.2.0a0
  - 1.2.0a1
  - 1.2.0a2
  - 1.2.0a3
  - 1.2.0a4
  - 1.2.0a5
  - 1.2.0a6
  - 1.2.0a7
  - 1.2.0rc1
  - 1.2.1
  - 1.2.10
  - 1.2.11
  - 1.2.12
  - 1.2.13
  - 1.2.14
  - 1.2.15
  - 1.2.16
  - 1.2.17
  - 1.2.18
  - 1.2.19
  - 1.2.1a1
  - 1.2.2
  - 1.2.20
  - 1.2.3
  - 1.2.4
  - 1.2.5
  - 1.2.6
  - 1.2.7
  - 1.2.8
  - 1.2.9
  - 1.3.0
  - 1.3.0a1
  - 1.3.0a2
  - 1.3.0a3
  - 1.3.1
  - 1.3.10
  - 1.3.11
  - 1.3.12
  - 1.3.13
  - 1.3.14
  - 1.3.15
  - 1.3.16
  - 1.3.17
  - 1.3.18
  - 1.3.19
  - 1.3.2
  - 1.3.20
  - 1.3.21
  - 1.3.22
  - 1.3.3
  - 1.3.4.post1
  - 1.3.5
  - 1.3.6
  - 1.3.7
  - 1.3.8
  - 1.3.9
  - 1.4.0
  - 1.4.0a1
  - 1.4.0a2
  - 1.4.1
  - 1.4.2
  - 1.4.3
  - 1.4.4
  - 1.4.5
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2024-9056
- type: PACKAGE
  url: https://github.com/bentoml/BentoML
- type: WEB
  url: "https://github.com/bentoml/BentoML/blob/a6f5f937be6ec278f3d4f3bbc6f3c8f9564820d7/src/bentoml/_internal/io_descriptors/file.py#L293"
- type: WEB
  url: "https://github.com/bentoml/BentoML/blob/v1.4.5/src/bentoml/_internal/io_descriptors/file.py#L293C9-L293C66"
- type: WEB
  url: https://huntr.com/bounties/a24a13c2-0300-4a95-b26a-ac7fe8f6521b
- type: PACKAGE
  url: https://pypi.org/project/bentoml
- type: ADVISORY
  url: https://github.com/advisories/GHSA-hw8j-hw49-752c
severity:
- type: CVSS_V3
  score: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H