TinyIce: Missing authentication on WebRTC ingest endpoint allows unauthorized stream injection

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

TinyIce is a streaming server for audio and video. In versions 0.8.95 through 2.4.1, missing authentication on WebRTC ingest endpoint allows unauthenticated stream injection. Version 2.5.0 fixes the issue by requiring either HTTP Basic auth or a `?password=` query parameter, comparing the supplied password against the per-mount source password (or the `default_source_password` fallback) using bcrypt, hooking into the existing brute-force IP rate-limiter (5 failed attempts per IP within 15 minutes triggers a lockout), and rejecting requests for mounts in `disabled_mounts`. The same release also tightens an adjacent endpoint, `POST /admin/golive/chunk`, which previously required session authentication but did not verify the session user's per-mount access nor check the CSRF token.

Source published

5 Jun 2026 16:57:52 UTC

Source modified

5 Jun 2026 19:07:26 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

TinyIce is a streaming server for audio and video. In versions 0.8.95 through 2.4.1, missing authentication on WebRTC ingest endpoint allows unauthenticated stream injection. Version 2.5.0 fixes the issue by requiring either HTTP Basic auth or a `?password=` query parameter, comparing the supplied password against the per-mount source password (or the `default_source_password` fallback) using bcrypt, hooking into the existing brute-force IP rate-limiter (5 failed attempts per IP within 15 minutes triggers a lockout), and rejecting requests for mounts in `disabled_mounts`. The same release also tightens an adjacent endpoint, `POST /admin/golive/chunk`, which previously required session authentication but did not verify the session user's per-mount access nor check the CSRF token.

Source published

Jun 5, 2026, 4:57:52 PM (timezone not stated)

Source modified

Jun 5, 2026, 7:07:26 PM (timezone not stated)

Observed here

7 Nov 2026 10:34:05 UTC

Source terms

ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

TinyIce is a streaming server for audio and video. In versions 0.8.95 through 2.4.1, missing authentication on WebRTC ingest endpoint allows unauthenticated stream injection. Version 2.5.0 fixes the issue by requiring either HTTP Basic auth or a `?password=` query parameter, comparing the supplied password against the per-mount source password (or the `default_source_password` fallback) using bcrypt, hooking into the existing brute-force IP rate-limiter (5 failed attempts per IP within 15 minutes triggers a lockout), and rejecting requests for mounts in `disabled_mounts`. The same release also tightens an adjacent endpoint, `POST /admin/golive/chunk`, which previously required session authentication but did not verify the session user's per-mount access nor check the CSRF token.

Source published

5 Jun 2026 18:17:27 UTC

Source modified

25 Oct 2026 23:10:00 UTC

Observed here

27 Oct 2026 11:12:23 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

## Title Missing authentication on WebRTC ingest endpoint allows unauthenticated stream injection in TinyIce ## Ecosystem / Package - **Ecosystem:** `Go` (or "Other" — TinyIce is shipped as a Go binary, not a Go module published to a registry) - **Package name:** `github.com/DatanoiseTV/tinyice` ## Affected versions ``` >= 0.8.95, <= 2.4.1 ``` (Introduced 2026-02-21 in commit `e2b60d6` — "debug: add Go Live connection tracing and backend data flow logging" — when `handleWebRTCSourceOffer` was registered at `/webrtc/source-offer` without an authentication check. Every tagged release from `v0.8.95` through `v2.4.1` ships the vulnerable handler.) ## Patched versions ``` >= 2.5.0 ``` ## Severity - **CVSS 3.1 base score:** 7.4 (High) - **CVSS vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L` - **CWE:** [CWE-306: Missing Authentication for Critical Function](https://cwe.mitre.org/data/definitions/306.html) ## Description TinyIce's WebRTC source-ingest HTTP endpoint, `POST /webrtc/source-offer?mount=<mount>`, accepted any inbound WebRTC SDP offer with no authentication check. The handler routed the offer to `WebRTCManager.HandleSourceOffer`, which then accepted whatever audio/video tracks the peer published and broadcast them on the named mount as if they were the legitimate source. The other ingest paths (`POST /<mount>` over HTTP/1 with the icecast `SOURCE` / `PUT` verb, RTMP, SRT) all require the per-mount source password, falling back to `default_source_password` from the config. The WebRTC ingest path didn't. ## Impact A network attacker who can reach the TinyIce HTTP port can: 1. Identify a target mount (mount names are public — they appear in the directory listing, the player URL, and the YP listing). 2. Negotiate a WebRTC peer connection with the server. 3. Publish arbitrary Opus / H.264 to that mount. 4. Have it broadcast to every listener on the mount. This is a high-integrity-impact issue: an attacker can replace a radio's broadcast with their own audio (silence, noise, malicious content, branded competitor content, etc.). Listeners hear what the attacker sends, not what the legitimate publisher intended. The legitimate publisher can re-establish their session — TinyIce's source-takeover handshake gives the new offer priority once it arrives, with a 3-second drain of the previous pump goroutine — but the attacker can in principle re-connect immediately after, producing a sustained broadcast hijack until the operator manually intervenes (block at firewall, rotate source passwords once the patch is applied, restart the service). There is no direct confidentiality impact through this endpoint: the attacker doesn't gain access to listener data or other mounts' content. ## Workarounds If users cannot upgrade immediately: - **Recommended:** block `POST /webrtc/source-offer` at the reverse proxy in front of TinyIce. The endpoint has no production use case for clients outside the operator's own administration — disabling it loses no functionality unless the consuming application specifically use the browser-based "go-live" feature. - Restrict TinyIce's HTTP port to a trusted network (VPN, internal LAN). Listener access can still be served via a separately-firewalled CDN if the application needs public listening. ## Detection To check whether an application's deployment is exposed, run from outside the network: ``` curl -i -X POST 'https://your-tinyice-host/webrtc/source-offer?mount=/anymount' \ -H 'Content-Type: application/json' \ -d '{"type":"offer","sdp":"v=0\r\n"}' ``` - If the response is `400 Bad Request` with a JSON body containing an SDP-parsing error from `pion/webrtc`, **a consuming application is vulnerable** — the server tried to negotiate the (malformed) offer without asking for credentials. - If the response is `401 Unauthorized` (Basic auth challenge), the consuming application has been patched. Authenticated log lines on a patched server will look like: ``` WARN Authentication failed for user 'webrtc-source' from 1.2.3.4: invalid source password ``` ## Fix Upstream commit: [`8067d6b`](https://github.com/DatanoiseTV/tinyice/commit/8067d6b) "fix(api): require source password on /webrtc/source-offer + CSRF/access on /go-live-chunk". The handler now: 1. Requires either HTTP Basic auth or a `?password=` query parameter. 2. Compares the supplied password against the per-mount source password (or the `default_source_password` fallback) using bcrypt. 3. Hooks into the existing brute-force IP rate-limiter (5 failed attempts per IP within 15 minutes triggers a lockout). 4. Rejects requests for mounts in `disabled_mounts`. The same release also tightens an adjacent endpoint, `POST /admin/golive/chunk`, which previously required session authentication but did not verify the session user's per-mount access nor check the CSRF token. ## Timeline - 2026-02-21 — Vulnerable handler introduced (`e2b60d6`). - 2026-05-09 — Vulnerability identified during a maintainer-led audit. - 2026-05-09 — Patched in commit `8067d6b`, released as `v2.5.0`. - 2026-05-09 — GitHub Security Advisory published, CVE assigned.

Source published

18 May 2026 17:20:17 UTC

Source modified

25 Jun 2026 23:11:24 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Publisher rating · HIGH

TinyIce: Missing authentication on WebRTC ingest endpoint allows unauthorized stream injection in github.com/DatanoiseTV/tinyice. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/DatanoiseTV/tinyice before v2.5.0.

Source published

25 Jun 2026 22:34:34 UTC

Source modified

25 Jun 2026 23:01:20 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.