CVE-2026-73160Disclosure

LOWCVSS 8.7 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Affected versions of cti-transmute contain an SSRF vulnerability in the /fetch_misp_event and /misp_search_events endpoints. The URL validation routine checked whether a supplied hostname was itself an IP literal and rejected private, loopback, link-local, or reserved IPs. However, ordinary domain names were accepted without resolving them first. An attacker could therefore use a hostname whose DNS record pointed to an internal address and cause the cti-transmute server to issue requests into its internal network. The commit explicitly states that anonymous callers could make the server request the internal target and read the response. The fix resolves hostnames using socket.getaddrinfo(), checks that every resolved address is globally routable, and additionally places @login_required on both affected MISP fetch/search routes.

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0.0/ 10 priority

Sources & remediation

Other references

https://github.com/MISP/cti-transmute/commit/4d29109a6f185d5e7c7f3b906f822ab34403f512

Weakness type (CWE)

CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
General: 1 classified signal
2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d

Signal classification2 categories

Disclosure

150.0%

General

150.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

iSECTECH@isectech_46d
Disclosure
`cti-transmute` CVE-2026-73160 shows why rejecting literal private IPs is insufficient. URL-fetch services must resolve DNS, validate every address and redirect, require authentication, and enforce network-level egress policy. https://nvd.nist.gov/vuln/detail/CVE-2026-73160
Post summary
The snippet outlines technical details of CVE‑2026‑73160, noting insufficient private‑IP rejection and recommending specific URL‑fetch controls, but it lacks evidence of PoC, exploit, active use, or patching.
0000037
87 followersView on X
CERT-PY@CERTpy46d
General
⚠️ Vulnerabilidad en productos MISP ❗ CVE-2026-73160 ➡️ Más info: https://www.cert.gov.py/vulnerabilidad-en-productos-misp-3/ https://t.co/i8VqXHe7ZM
Post summary
The entry references CVE-2026-73160 in MISP products and provides URLs for additional information, but offers no further technical, exploit, or remediation details.
00000204
6.7K followersView on X

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