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Vulnerability details: VCID-sshg-yscz-afga
Vulnerability ID VCID-sshg-yscz-afga
Aliases CVE-2025-1948
GHSA-889j-63jv-qhr8
Summary Eclipse Jetty HTTP/2 client can force the server to allocate a humongous byte buffer that may lead to OoM and subsequently the JVM to exit ### Original Report In Eclipse Jetty versions 12.0.0 to 12.0.16 included, an HTTP/2 client can specify a very large value for the HTTP/2 settings parameter SETTINGS_MAX_HEADER_LIST_SIZE. The Jetty HTTP/2 server does not perform validation on this setting, and tries to allocate a ByteBuffer of the specified capacity to encode HTTP responses, likely resulting in OutOfMemoryError being thrown, or even the JVM process exiting. ### Impact Remote peers can cause the JVM to crash or continuously report OOM. ### Patches 12.0.17 ### Workarounds No workarounds. ### References https://github.com/jetty/jetty.project/issues/12690
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-400 Uncontrolled Resource Consumption
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1948.json
epss 0.0047 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2025-1948
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-889j-63jv-qhr8
cvssv3.1 7.5 https://github.com/jetty/jetty.project
generic_textual HIGH https://github.com/jetty/jetty.project
cvssv3.1 7.5 https://github.com/jetty/jetty.project/commit/c8c2515936ef968dc8a3cecd9e79d1e69291e4bb
generic_textual HIGH https://github.com/jetty/jetty.project/commit/c8c2515936ef968dc8a3cecd9e79d1e69291e4bb
cvssv3.1 7.5 https://github.com/jetty/jetty.project/issues/12690
generic_textual HIGH https://github.com/jetty/jetty.project/issues/12690
cvssv3.1 7.5 https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
cvssv3.1_qr HIGH https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
generic_textual HIGH https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
ssvc Track https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
cvssv3.1 7.5 https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
generic_textual HIGH https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
ssvc Track https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2025-1948
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2025-1948
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1948.json
https://api.first.org/data/v1/epss?cve=CVE-2025-1948
https://github.com/jetty/jetty.project
https://github.com/jetty/jetty.project/commit/c8c2515936ef968dc8a3cecd9e79d1e69291e4bb
https://github.com/jetty/jetty.project/issues/12690
https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
https://nvd.nist.gov/vuln/detail/CVE-2025-1948
2365137 https://bugzilla.redhat.com/show_bug.cgi?id=2365137
GHSA-889j-63jv-qhr8 https://github.com/advisories/GHSA-889j-63jv-qhr8
RHSA-2025:10092 https://access.redhat.com/errata/RHSA-2025:10092
RHSA-2025:10097 https://access.redhat.com/errata/RHSA-2025:10097
RHSA-2025:10098 https://access.redhat.com/errata/RHSA-2025:10098
RHSA-2025:10104 https://access.redhat.com/errata/RHSA-2025:10104
RHSA-2025:10118 https://access.redhat.com/errata/RHSA-2025:10118
RHSA-2025:10119 https://access.redhat.com/errata/RHSA-2025:10119
RHSA-2025:10120 https://access.redhat.com/errata/RHSA-2025:10120
RHSA-2025:13274 https://access.redhat.com/errata/RHSA-2025:13274
RHSA-2025:7696 https://access.redhat.com/errata/RHSA-2025:7696
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1948.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/jetty/jetty.project
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/jetty/jetty.project/commit/c8c2515936ef968dc8a3cecd9e79d1e69291e4bb
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/jetty/jetty.project/issues/12690
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-05-08T18:31:29Z/ Found at https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-05-08T18:31:29Z/ Found at https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2025-1948
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.64599
EPSS Score 0.0047
Published At April 21, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:56:57.656281+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-889j-63jv-qhr8/GHSA-889j-63jv-qhr8.json 38.0.0