CVE-2024-45687

Identity spoofing via accepted CRLF header characters

Published Jan 21, 2025 · Updated Feb 12, 2025

HTTP response splitting in affected Payara Server and Payara Micro releases allows local users to manipulate state and spoof identities. The Grizzly HTTP parser and Server REST management interface accept CRLF and other disallowed characters inside header values instead of rejecting them. Exploitation requires low-privileged local access and active user interaction, and injected header boundaries can alter HTTP message interpretation and identity-related state.

CVSS severity2.4
Low
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP response splitting in affected Payara Server and Payara Micro releases allows local users to manipulate state and spoof identities. The Grizzly HTTP parser and Server REST management interface accept CRLF and other disallowed characters inside header values instead of rejecting them. Exploitation requires low-privileged local access and active user interaction, and injected header boundaries can alter HTTP message interpretation and identity-related state.

The record

CVE
CVE-2024-45687
Published
Jan 21, 2025
Updated
Feb 12, 2025
Vendor
Payara
Product
Payara Server
Classifications
CWE-113
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2025Record 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=4.1.151 <=4.1.2.191.51
  2. Affected versionversion=5.20.0 <=5.70.0
  3. Affected versionversion=5.2020.2 <=5.2022.5
  4. Affected versionversion=6.0.0 <=6.21.0
  5. Affected versionversion=6.2022.1 <=6.2024.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Payara · Payara Serverversion=4.1.151 <=4.1.2.191.51; version=5.20.0 <=5.70.0; version=5.2020.2 <=5.2022.5; version=6.0.0 <=6.21.0; version=6.2022.1 <=6.2024.12
Payara · Payara Microversion=4.1.152 <=4.1.2.191.51; version=5.20.0 <=5.70.0; version=5.2020.2 <=5.2022.5; version=6.0.0 <=6.21.0; version=6.2022.1 <=6.2024.12

Published CVSS scores

2.4PayaraCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:X/R:X/V:X/RE:X/U:X

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

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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