CVE-2026-80848: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-gvv5-3h67-3922
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Advisory Summary

CVE-2026-80848 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80848 at a Glance

CVE Identifier CVE-2026-80848
GHSA Identifier GHSA-gvv5-3h67-3922
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-80848

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-80848, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: fix UAF during close ZDI reported and analyzed a race condition during close for espintcp sockets: espintcp_close() frees emsg->skb via kfree_skb() without holding any socket lock. Concurrently, the xfrm_trans_reinject work queue invokes esp_output_tcp_finish() -> espintcp_push_skb() -> espintcp_push_msgs() -> skb_send_sock_locked(), which reads the same skb as a data source. Fix this by adding a synchronize_rcu() call after resetting sk_prot, since esp_output_tcp_finish() runs under RCU and won't use a socket with sk_prot == &tcp_prot. Simply taking the socket lock in espintcp_close() could lead to leaks, if esp_output_tcp_finish() re-adds an skb in the slot we just freed. After this, the existing barrier() is no longer needed.

References

NVD — CVE-2026-80848 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80848
git.kernel.org/stable/c/24efebecf4... WEB
https://git.kernel.org/stable/c/24efebecf415ba264adba0f0491cec436463a14f
git.kernel.org/stable/c/29121c5e65... WEB
https://git.kernel.org/stable/c/29121c5e6591da527e8e36ddac7120dc527f574d
git.kernel.org/stable/c/4b31a87569... WEB
https://git.kernel.org/stable/c/4b31a875693c480c611519faca46216514e3e052
git.kernel.org/stable/c/4bc0dfa28d... WEB
https://git.kernel.org/stable/c/4bc0dfa28dca6fc0084203732695968049c44072
git.kernel.org/stable/c/54b41ad14d... WEB
https://git.kernel.org/stable/c/54b41ad14da9a981131ab6e4d3f79321a503ea5d
git.kernel.org/stable/c/deb232e884... WEB
https://git.kernel.org/stable/c/deb232e884877bf10b4ce2580909eedec986c284
git.kernel.org/stable/c/eb3bbf29c7... WEB
https://git.kernel.org/stable/c/eb3bbf29c723fe75c0eb92be14f0ec92971fe272
git.kernel.org/stable/c/ed5d910219... WEB
https://git.kernel.org/stable/c/ed5d9102190c45fc70121c036b0626b740040b75
git.kernel.org/stable/c/ff8dd7a932... WEB
https://git.kernel.org/stable/c/ff8dd7a932f34409a56e1b91a1219340f17457e9

Frequently Asked Questions

What is CVE-2026-80848?
CVE-2026-80848 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-80848?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80848?
CVE-2026-80848 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80848?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "id" : "GHSA-gvv5-3h67-3922",
  "modified" : "2026-09-04T18:31:28Z",
  "published" : "2026-09-04T18:31:28Z",
  "aliases" : [ "CVE-2026-80848" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: espintcp: fix UAF during close\n\nZDI reported and analyzed a race condition during close for espintcp\nsockets:\n\n    espintcp_close() frees emsg->skb via kfree_skb() without holding\n    any socket lock. Concurrently, the xfrm_trans_reinject work queue\n    invokes esp_output_tcp_finish() -> espintcp_push_skb() ->\n    espintcp_push_msgs() -> skb_send_sock_locked(), which reads the\n    same skb as a data source.\n\nFix this by adding a synchronize_rcu() call after resetting sk_prot,\nsince esp_output_tcp_finish() runs under RCU and won't use a socket\nwith sk_prot == &tcp_prot.  Simply taking the socket lock in\nespintcp_close() could lead to leaks, if esp_output_tcp_finish()\nre-adds an skb in the slot we just freed. After this, the existing\nbarrier() is no longer needed.",
  "severity" : [ ],
  "affected" : [ ],
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  "database_specific" : {
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:13Z"
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}