CVE-2026-80977: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-ppq5-hh8r-qqhh
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CVSS 7.8
Published
Advisory Summary

CVE-2026-80977 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80977 at a Glance

CVE Identifier CVE-2026-80977
GHSA Identifier GHSA-ppq5-hh8r-qqhh
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-80977

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-2026-80977, 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: net: skbuff: don't touch shared zerocopy state in skb_tx_error() skb_tx_error() completes the zerocopy uarg and clears SKBFL_ALL_ZEROCOPY, and skb_zcopy_downgrade_managed() clears SKBFL_MANAGED_FRAG_REFS. Both live in skb_shinfo(), which every clone shares, while the caller only owns the reference it is about to drop. Through a clone it tells the producer its pages are free and drops SKBFL_SHARED_FRAG for an skb that is still in flight. Open vSwitch reaches this with a non-last OVS_ACTION_ATTR_RECIRC: clone_execute() sends a skb_clone() into ovs_dp_process_packet() while do_execute_actions() keeps forwarding the original, and skb_clone() does not privatise the frags here -- skb_orphan_frags() returns early on SKBFL_DONT_ORPHAN. A flow miss on the clone then strips the marker from the packet still being forwarded, and a later local ESP delivery decrypts in place over frags it does not own privately. Skip it for a cloned skb. Nothing is lost: skb_release_data() clears the zerocopy state once the last reference to the shared data goes.

References

NVD — CVE-2026-80977 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80977
git.kernel.org/stable/c/0370da114a... WEB
https://git.kernel.org/stable/c/0370da114a9bc044e248b85c6809d1b5e0c1f7f9
git.kernel.org/stable/c/15aa81b390... WEB
https://git.kernel.org/stable/c/15aa81b390d401abf4b8211042470e9e92e3b7fb
git.kernel.org/stable/c/288f997067... WEB
https://git.kernel.org/stable/c/288f9970670841044ab030104fa6b6ed159949d0
git.kernel.org/stable/c/363c4252ff... WEB
https://git.kernel.org/stable/c/363c4252ffc473a0203e91b83ede5519dfb8bd07
git.kernel.org/stable/c/6493165034... WEB
https://git.kernel.org/stable/c/6493165034bca14033bf49c9cec7b45e97a91497
git.kernel.org/stable/c/6ec22afc82... WEB
https://git.kernel.org/stable/c/6ec22afc82a3cae07ade0a6ec361ae2532128ff5
git.kernel.org/stable/c/b4452349dc... WEB
https://git.kernel.org/stable/c/b4452349dcf4d561e13be768d5d278de58248930
git.kernel.org/stable/c/f66bdb1cc0... WEB
https://git.kernel.org/stable/c/f66bdb1cc0fcd227a062378f8be0b5873aa5600a

Frequently Asked Questions

What is CVE-2026-80977?
CVE-2026-80977 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-2026-80977?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80977?
CVE-2026-80977 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80977?
CVE-2026-80977 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80977?
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 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-ppq5-hh8r-qqhh",
  "modified" : "2026-09-14T15:32:21Z",
  "published" : "2026-09-11T21:31:22Z",
  "aliases" : [ "CVE-2026-80977" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: skbuff: don't touch shared zerocopy state in skb_tx_error()\n\nskb_tx_error() completes the zerocopy uarg and clears\nSKBFL_ALL_ZEROCOPY, and skb_zcopy_downgrade_managed() clears\nSKBFL_MANAGED_FRAG_REFS. Both live in skb_shinfo(), which every clone\nshares, while the caller only owns the reference it is about to drop.\nThrough a clone it tells the producer its pages are free and drops\nSKBFL_SHARED_FRAG for an skb that is still in flight.\n\nOpen vSwitch reaches this with a non-last OVS_ACTION_ATTR_RECIRC:\nclone_execute() sends a skb_clone() into ovs_dp_process_packet() while\ndo_execute_actions() keeps forwarding the original, and skb_clone()\ndoes not privatise the frags here -- skb_orphan_frags() returns early\non SKBFL_DONT_ORPHAN. A flow miss on the clone then strips the marker\nfrom the packet still being forwarded, and a later local ESP delivery\ndecrypts in place over frags it does not own privately.\n\nSkip it for a cloned skb. Nothing is lost: skb_release_data() clears\nthe zerocopy state once the last reference to the shared data goes.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80977"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0370da114a9bc044e248b85c6809d1b5e0c1f7f9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/15aa81b390d401abf4b8211042470e9e92e3b7fb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/288f9970670841044ab030104fa6b6ed159949d0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/363c4252ffc473a0203e91b83ede5519dfb8bd07"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6493165034bca14033bf49c9cec7b45e97a91497"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6ec22afc82a3cae07ade0a6ec361ae2532128ff5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b4452349dcf4d561e13be768d5d278de58248930"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f66bdb1cc0fcd227a062378f8be0b5873aa5600a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:04Z"
  }
}