# github.com/apernet/hysteria/core/v2 (Go) vulnerabilities

Source: https://junglewise.ai/threats/technologies/github-com-apernet-hysteria-core-v2  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/github-com-apernet-hysteria-core-v2.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in github.com/apernet/hysteria/core/v2 (Go): 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, GO-2026-5809 - Hysteria has an authenticated UDP ACL bypass that enables…, was published on 7 July 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 4 (0 critical, 0 exploited in the wild)

## About github.com/apernet/hysteria/core/v2 (Go)

The core library for the Hysteria proxy protocol version 2, implemented in Go.

## Latest github.com/apernet/hysteria/core/v2 (Go) vulnerabilities

- [GO-2026-5809 - Hysteria has an authenticated UDP ACL bypass that enables localhost and private-network UDP SSRF in…](https://junglewise.ai/threats/go-2026-5809-hysteria-has-an-authenticated-udp-acl-bypass-that-enables-fc136b8e) (info, published 7 Jul 2026)
- [apernet Hysteria UDP ACL bypass and SSRF](https://junglewise.ai/threats/apernet-hysteria-udp-acl-bypass-and-ssrf-b247b4ec) (high, CVSS 7.4, published 26 Jun 2026)
- [GO-2026-5288 - Hysteria: A specially constructed quic package can crash the server OOM when the sniff is enabled in…](https://junglewise.ai/threats/go-2026-5288-hysteria-a-specially-constructed-quic-package-can-crash-89d3770b) (info, published 25 Jun 2026)
- [Hysteria: A specially constructed quic package can crash the server OOM when the sniff is enabled](https://junglewise.ai/threats/hysteria-a-specially-constructed-quic-package-can-crash-the-server-oom-8b6b3a75) (low, CVSS 3.1, published 5 May 2026)

## Most severe github.com/apernet/hysteria/core/v2 (Go) vulnerabilities

- [apernet Hysteria UDP ACL bypass and SSRF](https://junglewise.ai/threats/apernet-hysteria-udp-acl-bypass-and-ssrf-b247b4ec) (high, CVSS 7.4, published 26 Jun 2026)
- [Hysteria: A specially constructed quic package can crash the server OOM when the sniff is enabled](https://junglewise.ai/threats/hysteria-a-specially-constructed-quic-package-can-crash-the-server-oom-8b6b3a75) (low, CVSS 3.1, published 5 May 2026)
- [GO-2026-5809 - Hysteria has an authenticated UDP ACL bypass that enables localhost and private-network UDP SSRF in…](https://junglewise.ai/threats/go-2026-5809-hysteria-has-an-authenticated-udp-acl-bypass-that-enables-fc136b8e) (info, published 7 Jul 2026)
- [GO-2026-5288 - Hysteria: A specially constructed quic package can crash the server OOM when the sniff is enabled in…](https://junglewise.ai/threats/go-2026-5288-hysteria-a-specially-constructed-quic-package-can-crash-89d3770b) (info, published 25 Jun 2026)

## 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 Go technologies

- [github.com/mattermost/mattermost-server (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server): 297 vulnerabilities
- [github.com/mattermost/mattermost-server/v6 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6): 222 vulnerabilities
- [github.com/mattermost/mattermost/server/v8 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8): 207 vulnerabilities
- [github.com/mattermost/mattermost-server/v5 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5): 199 vulnerabilities
- [stdlib (Go)](https://junglewise.ai/threats/technologies/go-stdlib): 178 vulnerabilities
- [github.com/siyuan-note/siyuan/kernel (Go)](https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel): 160 vulnerabilities
- [code.gitea.io/gitea (Go)](https://junglewise.ai/threats/technologies/code-gitea-io-gitea): 126 vulnerabilities
- [code.vikunja.io/api (Go)](https://junglewise.ai/threats/technologies/code-vikunja-io-api): 91 vulnerabilities
- [gogs.io/gogs (Go)](https://junglewise.ai/threats/technologies/gogs-io-gogs): 81 vulnerabilities
- [github.com/traefik/traefik/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2): 78 vulnerabilities
- [github.com/traefik/traefik (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik): 75 vulnerabilities
- [github.com/usememos/memos (Go)](https://junglewise.ai/threats/technologies/github-com-usememos-memos): 75 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, "github.com/apernet/hysteria/core/v2 (Go) vulnerabilities", https://junglewise.ai/threats/technologies/github-com-apernet-hysteria-core-v2, 13 November 2026.