# google/protobuf (Packagist) vulnerabilities

Source: https://junglewise.ai/threats/technologies/google-protobuf  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/google-protobuf.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in google/protobuf (Packagist): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, Google Protobuf PHP denial of service via malicious messages, was published on 16 April 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (0 critical, 0 exploited in the wild)

## About google/protobuf (Packagist)

Protocol Buffers is a method for serializing structured data developed by Google.

## Latest google/protobuf (Packagist) vulnerabilities

- [Google Protobuf PHP denial of service via malicious messages](https://junglewise.ai/threats/google-protobuf-php-denial-of-service-via-malicious-messages-485224ad) (high, CVSS 7.1, published 16 Apr 2026)
- [CVE-2026-6409: Google Protobuf DoS via negative varints or deep recursion in PHP](https://junglewise.ai/threats/cve-2026-6409-google-protobuf-dos-via-negative-varints-or-deep-recursion-in-php) (high, CVSS 4, published 16 Apr 2026)
- [CVE-2021-22570: Withdrawn Advisory: NULL Pointer Dereference in Protocol Buffers](https://junglewise.ai/threats/cve-2021-22570-withdrawn-advisory-null-pointer-dereference-in-protocol-buffers) (low, CVSS 3.1, published 26 Jan 2022)

## Most severe google/protobuf (Packagist) vulnerabilities

- [Google Protobuf PHP denial of service via malicious messages](https://junglewise.ai/threats/google-protobuf-php-denial-of-service-via-malicious-messages-485224ad) (high, CVSS 7.1, published 16 Apr 2026)
- [CVE-2026-6409: Google Protobuf DoS via negative varints or deep recursion in PHP](https://junglewise.ai/threats/cve-2026-6409-google-protobuf-dos-via-negative-varints-or-deep-recursion-in-php) (high, CVSS 4, published 16 Apr 2026)
- [CVE-2021-22570: Withdrawn Advisory: NULL Pointer Dereference in Protocol Buffers](https://junglewise.ai/threats/cve-2021-22570-withdrawn-advisory-null-pointer-dereference-in-protocol-buffers) (low, CVSS 3.1, published 26 Jan 2022)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Packagist technologies

- [moodle/moodle (Packagist)](https://junglewise.ai/threats/technologies/moodle-moodle): 434 vulnerabilities
- [magento/community-edition (Packagist)](https://junglewise.ai/threats/technologies/packagist-magento-community-edition): 362 vulnerabilities
- [typo3/cms (Packagist)](https://junglewise.ai/threats/technologies/packagist-typo3-cms): 187 vulnerabilities
- [wwbn/avideo (Packagist)](https://junglewise.ai/threats/technologies/wwbn-avideo): 164 vulnerabilities
- [magento/project-community-edition (Packagist)](https://junglewise.ai/threats/technologies/magento-project-community-edition): 161 vulnerabilities
- [drupal/core (Packagist)](https://junglewise.ai/threats/technologies/packagist-drupal-core): 150 vulnerabilities
- [pimcore/pimcore (Packagist)](https://junglewise.ai/threats/technologies/pimcore-pimcore): 145 vulnerabilities
- [craftcms/cms (Packagist)](https://junglewise.ai/threats/technologies/craftcms-cms): 143 vulnerabilities
- [dolibarr/dolibarr (Packagist)](https://junglewise.ai/threats/technologies/dolibarr-dolibarr): 127 vulnerabilities
- [getgrav/grav (Packagist)](https://junglewise.ai/threats/technologies/getgrav-grav): 127 vulnerabilities
- [typo3/cms-core (Packagist)](https://junglewise.ai/threats/technologies/typo3-cms-core): 127 vulnerabilities
- [concrete5/concrete5 (Packagist)](https://junglewise.ai/threats/technologies/concrete5-concrete5): 122 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "google/protobuf (Packagist) vulnerabilities", https://junglewise.ai/threats/technologies/google-protobuf, 9 November 2026.