Read the docs
TI-2026-66141 Aliases CVE-2026-104861GHSA-gjj5-9665-rwrc

probe-image-size: Quadratic-time Denial of Service in the SVG Parser

Priority HIGH 72CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-1333.

Summary

probe-image-size gets image dimensions without downloading the entire file. Prior to 7.4.0, lib/parse_sync/svg.js and lib/parse_stream/svg.js use the searching regular expression /<[-_.:a-zA-Z0-9][^>]*>/, which repeatedly scans to the end of input when attacker-controlled data contains many less-than characters without a closing greater-than character. The synchronous parser converts and scans the full supplied buffer without an input cap, while the streaming parser reparses the complete accumulated SVG prefix for every received chunk. The probe.sync(), probe(stream), and probe(url) entry points can therefore block the Node.js event loop at full CPU, and attacker-controlled chunking can amplify the streaming cost. This issue is fixed in version 7.4.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00425 37th percentileScored 2026-11-07
Fix Fixed probe-image-size (nodeca): 7.4.0probe-image-size (npm): 7.4.0Red Hat: 4 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nodecaprobe-image-sizebefore 7.4.07.4.0Patch availableCNA
—probe-image-size (npm)before 7.4.07.4.0Patch availableGHSA-gjj5-9665-rwrc
  • probe-image-size Vendornodeca Affected before 7.4.0 Fixed in 7.4.0 Patch available CNA
  • probe-image-size (npm) Vendor— Affected before 7.4.0 Fixed in 7.4.0 Patch available GHSA-gjj5-9665-rwrc

Remediation

  • Fix · CNA probe-image-size (nodeca) Fixed in 7.4.0
  • Fix · GHSA-gjj5-9665-rwrc probe-image-size (npm) Fixed in 7.4.0 Advisory →

Red Hat 4 advisories

  • RHSA-2026:92136 Released 2026-10-28 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2026:91967 Released 2026-10-28 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2026:86891 Released 2026-10-21 · Red Hat rating Critical
    RHOAI 3.5.2 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.5 registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-cli-rhel9 +47
Show 1 more Red Hat advisories
  • RHSA-2026:84734 Released 2026-10-19 · Red Hat rating Critical
    RHOAI 3.4.5 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Discovery 2Fixed RHSA-2026:91967, RHSA-2026:92136
Red Hat OpenShift AI 3.4Fixed RHSA-2026:84734
Red Hat OpenShift AI 3.5Fixed RHSA-2026:86891
Not affected: 3 products
  • Red Hat Discovery 2
  • Red Hat OpenShift AI 3.4
  • Red Hat OpenShift AI 3.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-104861
  2. 2026-10-03 Alias added: GHSA-gjj5-9665-rwrc
  3. 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
  4. 2026-10-20 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
  5. 2026-10-22 Fix available: RHSA-2026:86891 · Red Hat
  6. 2026-10-22 Fix available: Red Hat OpenShift AI 3.5 · Red Hat
  7. 2026-10-30 Fix available: RHSA-2026:91967 · Red Hat
  8. 2026-10-30 Fix available: RHSA-2026:92136 · Red Hat
  9. 2026-10-30 Fix available: Red Hat Discovery 2 · Red Hat

References

Advisory 1

Other 6

  • TI-2026-51727 js-yaml: Exponential parsing time in the flow collections leads to denial of service CVSS 3.1HIGH 7.5
  • TI-2026-42685 js-yaml quadratic-complexity denial of service via YAML11_SCHEMA !!omap parsing CVSS 3.1HIGH 7.5
  • TI-2026-42684 js-yaml: YAML merge-key chains can force quadratic CPU consumption CVSS 3.1HIGH 7.5
  • TI-2026-42683 js-yaml: YAML merge-key chains can force quadratic CPU consumption CVSS 3.1HIGH 7.5
  • TI-2013-04085 The JS-YAML module before 2.0.5 for Node.js parses input without properly considering the… CVSS 2.0MEDIUM 6.8
  • TI-2026-57986 js-yaml: maxTotalMergeKeys does not limit CPU use for empty merge sources CVSS 3.1HIGH 7.5
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences