How severe is GHSA-hvwj-8w5g-28rg?

GHSA-hvwj-8w5g-28rg has a CVSS score of 7.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-hvwj-8w5g-28rg?

GHSA-hvwj-8w5g-28rg affects the following packages: sglang (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-hvwj-8w5g-28rg?

Update sglang to 0.5.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hvwj-8w5g-28rg is resolved across your whole dependency graph.

How do I detect GHSA-hvwj-8w5g-28rg in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sglang. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-hvwj-8w5g-28rg if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-hvwj-8w5g-28rg?

O3 pinpoints whether GHSA-hvwj-8w5g-28rg is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-hvwj-8w5g-28rg actively exploited in the wild?

No public exploit code has been indexed for GHSA-hvwj-8w5g-28rg yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-hvwj-8w5g-28rg published, and has it been updated?

GHSA-hvwj-8w5g-28rg was published on March 12, 2026 and was last updated on July 13, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

GHSA-hvwj-8w5g-28rg

HIGH

GHSA-hvwj-8w5g-28rg is a high-severity (CVSS 7.8) remote code execution vulnerability in sglang. O3 Security confirms whether GHSA-hvwj-8w5g-28rg is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization

Also known asCVE-2026-3989PYSEC-2026-3063

Published

Mar 12, 2026

Updated

Jul 13, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Blast Radius

1 pkg affected

🐍sglang

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

SGLangs replay_request_dump.py contains an insecure pickle.load() without validation and proper deserialization. An attacker can take advantage of this by providing a malicious .pkl file, which will execute the attackers code on the device running the script.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`sglang`	all versions	0.5.10

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sglang. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update sglang to 0.5.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hvwj-8w5g-28rg is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-hvwj-8w5g-28rg is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-hvwj-8w5g-28rg. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization. An attacker can take advantage of this by providing a malicious .pkl file, which will execute the attackers code on the device running the script.

O3 Security · Impact-Aware SCA

Is GHSA-hvwj-8w5g-28rg in your dependencies?

O3 detects GHSA-hvwj-8w5g-28rg across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works