CVE-2026-115905

waiting for further signalsZero needs more public information before it can validate it.

GHSA-m665-v7pm-7grj ↗EUVD-2026-109981 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−8.9dkevAttacks confirmed in the real world.
zip-rs zip2 <= 9.0.4
fixed in 9.0.5
CWE-20 Improper Input Validation
ETK-2026-2662Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:cargo/zip
3h 01msince last run
42mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal +0dpublic poc+0dcve.org publication+8.9dwaiting for further signals
0
+2d
+4d
+6d
+8d

description

zip2 versions through 9.0.4 can interpret ZIP entry names differently during inspection and streamed extraction. An attacker able to provide an archive may bypass central-directory-based checks and cause extracted content to be written to another path, potentially replacing files used by a downstream service.

mitigation

Upgrade zip2 to version 9.0.5 or later. Until upgraded, do not stream-extract untrusted ZIP archives based solely on central-directory validation.

fixed in 9.0.5

check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
42m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-26 16:24Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
−8.9d
Δ to kevAttacks confirmed in the real world.
–

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.

  1. 2026-10-17 18:48Z
  2. 2026-10-26 16:24Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-115905

{
  "etk_id": "ETK-2026-2662",
  "cve_id": "CVE-2026-115905",
  "display_id": "CVE-2026-115905",
  "ghsa_id": "GHSA-m665-v7pm-7grj",
  "euvd_id": "EUVD-2026-109981",
  "status": "published",
  "anchor_state": "anchored",
  "title": "ZIP metadata mismatch path overwrite in zip2",
  "summary": "zip2 versions through 9.0.4 can interpret ZIP entry names differently during inspection and streamed extraction. An attacker able to provide an archive may bypass central-directory-based checks and cause extracted content to be written to another path, potentially replacing files used by a downstream service.",
  "mitigation": "Upgrade zip2 to version 9.0.5 or later. Until upgraded, do not stream-extract untrusted ZIP archives based solely on central-directory validation.",
  "vendor": "zip-rs",
  "product": "zip2",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 9.0.4"
      ],
      "ecosystem": "rust",
      "fixed_versions": [
        "9.0.5"
      ],
      "package_name": "zip",
      "purl": "pkg:cargo/zip"
    }
  ],
  "cwes": [
    20
  ],
  "cvss_score": 10,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 41.76542715,
  "t0_at": "2026-10-26T16:24:44.760000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-17T18:48:34+00:00",
      "days": -8.900124537037037,
      "is_lower_bound": false,
      "measured_at": "2026-10-26T16:24:44.760000+00:00",
      "url": "https://github.com/zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grj"
    },
    "trigger_signal": {
      "at": "2026-10-17T18:48:34+00:00",
      "days": -8.900124537037037,
      "is_lower_bound": false,
      "measured_at": "2026-10-26T16:24:44.760000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-115905"
    }
  }
}

published 2026-10-26 16:48Z
last change 2026-10-26 19:27Z

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