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No exploitation reportedFix available

CVE-2026-44294

No exploitation reported by the sources we read.

  • Published2026-05-13
  • Fixed in8.0.2 · 7.5.6
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names were not escaped before being embedded into generated function bodies. A crafted schema or JSON descriptor could therefore cause generated encode, decode, verify, or conversion functions to fail during compilation. This vulnerability is fixed in 7.5.6 and 8.0.2.

Timeline

dates in UTC
  1. 2026-05-1316:16CVE publishedNVD

Versions per branch

NVD · OSV
Protobufjs project protobufjs
BranchAffectedFixed in
8.0≥ 8.0.0, < 8.0.28.0.2
7.5< 7.5.67.5.6

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • protobufjs protobuf.js
    Affected
    • = < 7.5.6no fix stated
    • = >= 8.0.0, < 8.0.2no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-05-13

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • @rootio/protobufjsRoot:npmall versions · fixed in 7.5.5-root.io.4
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.4-root.io.3
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.4-root.io.4
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.4-root.io.5
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.6-root.io.3
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.6-root.io.4
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.6-root.io.5
  • @rootio/protobufjsRoot:npmall versions · fixed in 6.11.6-root.io.6

86 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-44294 Red Hat Product Security37 known affected

    protobufjs: protobufjs: Denial of Service due to unescaped control characters in field names

    grafana-infinity-datasource-npm as a component of Cryostat 4 · openshift-pipelines/pipelines-console-plugin-rhel8 as a component of OpenShift Pipelines · openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines · +34 more

Full record on NVD

Fix

  1. Update Protobufjs project protobufjs to 8.0.2 · 7.5.6
  2. Workaround from the vendor Red Hat Product Security CVE-2026-44294 · 37 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
  3. No fix available, says the vendor Red Hat Product Security CVE-2026-44294 · 35 productsFix deferred
  4. No fix available, says the vendor Red Hat Product Security CVE-2026-44294 · 1 productAffected
  5. No fix planned, says the vendor Red Hat Product Security CVE-2026-44294 · 1 productWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-05-13
  • CNACVSS 3.15.3known since 2026-10-23
  • CNAweakness (CWE)CWE-20known since 2026-10-23
  • FIRST EPSSEPSS score0.4 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2026-05-12

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published
2026-05-13
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-2pr8-phx7-x9h3

Frequently asked questions

What is CVE-2026-44294?

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names were not escaped before being embedded into generated function bodies. A crafted schema or JSON descriptor could therefore cause generated encode, decode, verify, or conversion functions to fail during compilation. This vulnerability is fixed in 7.5.6 and 8.0.2.

Is CVE-2026-44294 actively exploited?

Active exploitation of CVE-2026-44294 has not been confirmed. Its EPSS score was 0.4% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-44294?

CVE-2026-44294 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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