CVE-2026-2016
Description
A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. The identifier of the patch is 82f66af3e252e3e137dba0c3891570f085e79adf. Applying a patch is the recommended action to fix this issue.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| happyfish100 | libfastcommon | {"endIncluding":"1.0.84"} | |
References
- https://github.com/happyfish100/libfastcommon/
- https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adf
- https://github.com/happyfish100/libfastcommon/issues/55
- https://github.com/happyfish100/libfastcommon/issues/55#issue-3836362577
- https://github.com/happyfish100/libfastcommon/issues/55#issuecomment-3776757848
- https://vuldb.com/?ctiid.344598
- https://vuldb.com/?id.344598
- https://vuldb.com/?submit.743873
CWEs
CWE-119 CWE-121 CWE-787
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.