CVE-2024-45815Network attack vector

Service interruption via crafted catalog API query

Published Sep 17, 2024 · Updated Sep 18, 2024

Prototype pollution in Backstage before 1.26.0 allows remote authenticated users to interrupt the catalog service with a crafted API query. Catalog API query processing accepts object attributes without adequately blocking prototype modification; the affected function and property path are undisclosed. Authenticated access and an installed catalog backend plugin are required, and the reported consequence is service interruption without data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Prototype pollution in Backstage before 1.26.0 allows remote authenticated users to interrupt the catalog service with a crafted API query. Catalog API query processing accepts object attributes without adequately blocking prototype modification; the affected function and property path are undisclosed. Authenticated access and an installed catalog backend plugin are required, and the reported consequence is service interruption without data disclosure or modification.

The record

CVE
CVE-2024-45815
Published
Sep 17, 2024
Updated
Sep 18, 2024
Vendor
Backstage
Product
Backstage
Classifications
CWE-1321, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=< 1.26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Backstage · Backstageversion=< 1.26.0

Published CVSS scores

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
T1499Endpoint Denial of Service

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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