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CVE-2025-1948 Eclipse Jetty

Affected softwareEclipse Jetty
Severity7.5 High CVSS 3.1
Fixed in12.0.17
WeaknessUncontrolled resource consumption (CWE-400)
Published8 May 2025
Updated17 Jun 2026

Description

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published a year ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.79% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: jetty/jetty.project c8c2515.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8 : the maintainers' own security advisory: names the version that fixes it, so the fix is the difference between two releases

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update April 2026 ↗ CPU 2026-Q2 Oracle Financial Services Applications / Configuration (Eclipse Jetty) (14.5.0.0.0-14.8.0.0.0)
Oracle Critical Patch Update October 2025 ↗ CPU 2025-Q4 Oracle Communications / Security (Eclipse Jetty) (47.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Communications Security (Eclipse Jetty) 47.0 47.0
Oracle Financial Services Applications Configuration (Eclipse Jetty) 14.5.0.0.0-14.8.0.0.0

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.eclipse.jetty.http2:jetty-http2-common 12.0.0 12.0.17 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
nvd eclipse jetty generic ≥ 12.0.0 and < 12.0.17
osv org.eclipse.jetty.http2 jetty-http2-common generic ≥ 12.0.0 and < 12.0.17

References

URLTags
https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8 advisory
https://github.com/jetty/jetty.project/issues/12690 WEB
https://github.com/jetty/jetty.project/commit/c8c2515936ef968dc8a3cecd9e79d1e69291e4bb WEB
https://github.com/jetty/jetty.project PACKAGE
https://gitlab.eclipse.org/security/cve-assignement/-/issues/56 WEB

Timeline

Published2025-05-08By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.