CVE-2026-1173Public exploitNetwork attack vector

Unauthenticated service interruption via GraphQL query batching

Published Jan 19, 2026 · Updated Jan 19, 2026

Denial of service in Prime 0.4.0.beta.0 and earlier allows remote attackers to interrupt the service via batched GraphQL requests. The /graphql endpoint accepts a JSON array and processes multiple queries from one HTTP request instead of enforcing a single-query request. No authentication is required; batching lets each request multiply GraphQL work until service is interrupted.

CVSS severity5.3
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Prime 0.4.0.beta.0 and earlier allows remote attackers to interrupt the service via batched GraphQL requests. The /graphql endpoint accepts a JSON array and processes multiple queries from one HTTP request instead of enforcing a single-query request. No authentication is required; batching lets each request multiply GraphQL work until service is interrupted.

The record

CVE
CVE-2026-1173
Published
Jan 19, 2026
Updated
Jan 19, 2026
Vendor
Birkir Gudjonsson
Product
Prime
Classifications
CWE-404, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 19, 2026Record 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=0.4.0.beta

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Birkir Gudjonsson · Primeversion=0.4.0.beta

Published CVSS scores

5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
5.0VulDBAV:N/AC:L/Au:N/C:N/I:N/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

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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