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NVD / CVE Program· CNA eclipse

CVE-2023-4759: Improper handling of case insensitive filesystems in Eclipse JGit allows arbitrary file write

Noroxi assessment

Priority: Monitor (action score 36/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 2.1% (FIRST EPSS); higher than 82.4% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: jgit (Debian:13) 6.7.0-1; org.eclipse.jgit:org.eclipse.jgit (Maven) 6.6.1.202309021850-r, 5.13.3.202401111512-r; eclipse-jgit (openSUSE:Leap 15.4) 5.11.0-150200.3.15.2.

Low priority for now. Upgrade to jgit (Debian:13) 6.7.0-1; org.eclipse.jgit:org.eclipse.jgit (Maven) 6.6.1.202309021850-r, 5.13.3.202401111512-r; eclipse-jgit (openSUSE:Leap 15.4) 5.11.0-150200.3.15.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Arbitrary File Overwrite in Eclipse JGit <= 6.6.0 In Eclipse JGit, all versions <= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem. This can happen on checkout (DirCacheCheckout), merge (ResolveMerger via its WorkingTreeUpdater), pull (PullCommand using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command. The issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration. Setting git configuration option core.symlinks = false before checking out avoids the problem. The issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/  and repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ . A backport is available in 5.13.3 starting from 5.13.3.202401111512-r. The JGit maintainers would like to thank RyotaK for finding and reporting this issue.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
Sep 12, 2023
Updated
Jun 17, 2026
EPSS
2.1% · 82th percentile

Report tools

JSON

Action score

36

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
8.8
CNA · eclipse
8.8
agree

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
eclipsejgit
applemacos
microsoftwindows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • eclipse jgitbefore 5.13.3.202401111512-r
  • eclipse jgit6.6.0 and later · before 6.6.0.202305301015
  • eclipse jgit6.7.0 and later · before 6.7.0.202309050840

Versions reported by the vendor

Affected version ranges reported by the assigning authority (eclipse). Independent of NVD's CPE analysis and usually ahead of it.

  • Eclipse Foundation Eclipse JGit

    • 5.13.3.202401111512-rnot affected
    • 0.0.0 and later · up to and including 6.6.0.202305301015-raffected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12jgitfrom 0—
Debian:13jgitbefore 6.7.0-16.7.0-1
Mavenorg.eclipse.jgit:org.eclipse.jgitfrom 6.0.0.202111291000-r · before 6.6.1.202309021850-r6.6.1.202309021850-r
Mavenorg.eclipse.jgit:org.eclipse.jgitbefore 5.13.3.202401111512-r5.13.3.202401111512-r
openSUSE:Leap 15.4eclipse-jgitbefore 5.11.0-150200.3.15.25.11.0-150200.3.15.2
openSUSE:Leap 15.4jgitbefore 5.11.0-150200.3.15.25.11.0-150200.3.15.2
openSUSE:Leap 15.4jschbefore 0.2.9-150200.11.10.10.2.9-150200.11.10.1
openSUSE:Tumbleweedeclipse-jgitbefore 5.11.0-9.15.11.0-9.1
openSUSE:Tumbleweedjgitbefore 5.11.0-2.15.11.0-2.1
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-eclipse-jgitbefore 0:5.13.2-1.SP1_redhat_00001.1.el7eap0:5.13.2-1.SP1_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-glassfish-jsfbefore 0:2.3.14-7.SP08_redhat_00001.1.el7eap0:2.3.14-7.SP08_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-hibernatebefore 0:5.3.33-2.Final_redhat_00001.1.el7eap0:5.3.33-2.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-hibernate-corebefore 0:5.3.33-2.Final_redhat_00001.1.el7eap0:5.3.33-2.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-hibernate-entitymanagerbefore 0:5.3.33-2.Final_redhat_00001.1.el7eap0:5.3.33-2.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-hibernate-enversbefore 0:5.3.33-2.Final_redhat_00001.1.el7eap0:5.3.33-2.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-hibernate-java8before 0:5.3.33-2.Final_redhat_00001.1.el7eap0:5.3.33-2.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-insights-java-clientbefore 0:1.1.1-1.redhat_00001.1.el7eap0:1.1.1-1.redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamarbefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamar-common-apibefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamar-common-implbefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamar-common-spibefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamar-core-apibefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamar-core-implbefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-ironjacamar-deployers-commonbefore 0:1.5.16-1.Final_redhat_00001.1.el7eap0:1.5.16-1.Final_redhat_00001.1.el7eap

+96

Same product

eclipse: all records

Other highest-scoring records for the same primary product.

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:jgit6.7.0-1 · Debian:13Package registry (OSV)
Maven:org.eclipse.jgit:org.eclipse.jgit5.13.3.202401111512-rPackage registry (OSV)
Maven:org.eclipse.jgit:org.eclipse.jgit6.6.1.202309021850-rPackage registry (OSV)
opensuse:eclipse-jgit5.11.0-150200.3.15.2 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:jgit5.11.0-150200.3.15.2 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:jsch0.2.9-150200.11.10.1 · openSUSE:Leap 15.4Package registry (OSV)
red hat:eap7-eclipse-jgit0:5.13.2-1.SP1_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-glassfish-jsf0:2.3.14-7.SP08_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-hibernate0:5.3.33-2.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-hibernate-core0:5.3.33-2.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-hibernate-entitymanager0:5.3.33-2.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-hibernate-envers0:5.3.33-2.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-hibernate-java80:5.3.33-2.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-insights-java-client0:1.1.1-1.redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-ironjacamar0:1.5.16-1.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-ironjacamar-common-api0:1.5.16-1.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-ironjacamar-common-impl0:1.5.16-1.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-ironjacamar-common-spi0:1.5.16-1.Final_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
suse:jsch0.2.9-150200.11.10.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

  • RyotaKFlatt Security Inc.finder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records