ETK-2026-3588Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
gopacket versions before 1.7.6 can mishandle malformed network traffic or capture-file data during packet decoding. An attacker able to supply such input may cause process termination, excessive CPU use, or exposure of residual bytes from a prior packet; impact varies with decoding APIs and options, including pooled buffers and disabled panic recovery.
mitigation
Upgrade github.com/gopacket/gopacket to version 1.7.6. Until then, keep decode recovery enabled, avoid the packet-data pool, and discard packets that report decoding errors before further processing.
fixed in 1.7.6
outcome
Contextual, not validated: no deterministic check could cover this one, and no technique passed our review.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-05 02:16Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-3588
{ "etk_id": "ETK-2026-3588", "cve_id": null, "display_id": "ETK-2026-3588", "ghsa_id": "GHSA-63gp-f575-ch7c", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "Malformed-input handling flaws in gopacket packet decoding", "summary": "gopacket versions before 1.7.6 can mishandle malformed network traffic or capture-file data during packet decoding. An attacker able to supply such input may cause process termination, excessive CPU use, or exposure of residual bytes from a prior packet; impact varies with decoding APIs and options, including pooled buffers and disabled panic recovery.", "mitigation": "Upgrade github.com/gopacket/gopacket to version 1.7.6. Until then, keep decode recovery enabled, avoid the packet-data pool, and discard packets that report decoding errors before further processing.", "vendor": "go", "product": "go:github.com/gopacket/gopacket", "affected": [ { "affected_notes": [], "affected_ranges": [ "<= 1.7.5" ], "ecosystem": "go", "fixed_versions": [ "1.7.6" ], "package_name": "github.com/gopacket/gopacket", "purl": "pkg:golang/github.com/gopacket/gopacket" } ], "cwes": [ 125 ], "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 8.727483933333334, "t0_at": null, "signals": { "trigger_signal": { "at": "2026-11-05T02:16:06+00:00", "days": -0.8543811631712963, "is_lower_bound": true, "measured_at": "2026-11-05T22:46:24.568972+00:00", "url": "https://github.com/gopacket/gopacket/security/advisories/GHSA-63gp-f575-ch7c" } } }
published 2026-11-05 05:53Z
last change 2026-11-05 22:29Z
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