CVE-2026-115905

CRITICALPre-NVD 10.010.0
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 10.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (25th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-109981 (ENISA EUVD) · GHSA-m665-v7pm-7grj (GitHub Security Advisories)Source: ENISA EUVD

10.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 10.0Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

zip is a zip library for Rust that supports reading and writing simple ZIP files. Through 9.0.4, ZipArchive treats Central Directory File Header filenames as authoritative while ZipStreamReader extracts using Local File Header filenames without reconciling the duplicate metadata in src/read/stream.rs. A crafted archive can therefore appear benign to a component that inspects the central directory but cause a streaming extractor to write a different attacker-selected path and content, potentially overwriting files used by a downstream service. This issue is fixed in version 9.0.5.

CVSS
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
76
EG Risk 76/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity100% × 45%
Impact severity (EG Severity): CVSS 10.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (10.0): severity, escalated by confirmed exploitation. This CVE's 10.0 is its impact severity (EG Severity), not escalated.

EG Severity
10.0 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 26, 2026

Last Modified

November 2, 2026

Advisory Details (3)

Auto-updated Nov 2, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit.
GitHub advisoryMentions a patch (unverified)🟡 PoC Available

Dual-Header Inconsistencies (Zip Cloaking) · Advisory · zip-rs/zip2 · GitHub

https://github.com/zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grj
GitHub release Patch Available

v9.0.5

Patch available: zip-rs/zip2 v9.0.5

https://github.com/zip-rs/zip2/releases/tag/v9.0.5
GitHub commit Patch Available

commit 8068ab480ccf (zip-rs/zip2)

Patch available: zip-rs/zip2 v9.0.5 (contains commit 8068ab480ccf)

https://github.com/zip-rs/zip2/commit/8068ab480ccf8daa7411424e365fcdbe6d09443e

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
rustzip @ 9.0.5 (fixes <= 9.0.4)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
crates.io(1)
PackageVulnerable rangeFix by version rangeDependents
zip—
  • every version up to 9.0.5: fixed in 9.0.5
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
rust-zip0.6.3-3 ... 9.1.3+ds-1 (14 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
rust-zip2.5.0-1 ... 9.1.3+ds-1 (8 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
rust-zip2.5.0-1 ... 9.1.3+ds-1 (8 versions)
  • every version on: no fix on record
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 49× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-12 23:03 UTCEchelonGraph re-scored
  2. 2026-11-12 23:03 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  3. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  4. 2026-11-12 00:51 UTCEchelonGraph re-scored
  5. 2026-11-12 00:51 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  6. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  7. 2026-11-11 02:40 UTCEchelonGraph re-scored
  8. 2026-11-11 02:40 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  9. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  10. 2026-11-10 05:49 UTCEchelonGraph re-scored
  11. 2026-11-10 05:49 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  12. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  13. 2026-11-09 07:37 UTCEchelonGraph re-scored
  14. 2026-11-09 07:37 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  15. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-11-08 09:25 UTCEchelonGraph re-scored
  17. 2026-11-08 09:25 UTCVendor advisory
  18. 2026-11-08 09:25 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  19. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  20. 2026-11-07 11:13 UTCEchelonGraph re-scored
  21. 2026-11-07 11:13 UTCVendor advisory
  22. 2026-11-07 11:13 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  23. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  24. 2026-11-06 13:01 UTCEchelonGraph re-scored
  25. 2026-11-06 13:01 UTCVendor advisory
Show 45 more
  1. 2026-11-06 13:01 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  2. 2026-11-05 23:25 UTCOSV refresh
  3. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  4. 2026-11-05 14:49 UTCVendor advisory
  5. 2026-11-05 14:49 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  6. 2026-11-04 16:36 UTCEchelonGraph re-scored
  7. 2026-11-04 16:36 UTCVendor advisory
  8. 2026-11-04 16:36 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  9. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  10. 2026-11-03 18:23 UTCVendor advisory
  11. 2026-11-03 18:23 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  12. 2026-11-03 16:50 UTCEchelonGraph re-scored
  13. 2026-11-03 16:50 UTCVendor advisory
  14. 2026-11-03 16:50 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  15. 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-11-02 18:29 UTCEchelonGraph re-scored
  17. 2026-11-02 18:29 UTCVendor advisory
  18. 2026-11-02 18:29 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  19. 2026-11-02 18:27 UTCEchelonGraph re-scored
  20. 2026-11-02 18:27 UTCVendor advisory
  21. 2026-11-02 18:27 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  22. 2026-11-02 17:53 UTCEchelonGraph re-scored
  23. 2026-11-02 17:53 UTCVendor advisory
  24. 2026-11-02 17:53 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  25. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  26. 2026-11-02 02:34 UTCEchelonGraph re-scored
  27. 2026-11-02 02:34 UTCVendor advisory
  28. 2026-11-02 02:34 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  29. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  30. 2026-11-01 07:59 UTCGHSA enrichmentGHSA-m665-v7pm-7grj · GitHub severity CRITICAL
  31. 2026-11-01 04:22 UTCEchelonGraph re-scored
  32. 2026-11-01 04:22 UTCVendor advisory
  33. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  34. 2026-10-31 06:07 UTCEchelonGraph re-scored
  35. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  36. 2026-10-30 07:52 UTCEchelonGraph re-scored
  37. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  38. 2026-10-29 09:41 UTCEchelonGraph re-scored
  39. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  40. 2026-10-28 11:29 UTCEchelonGraph re-scored
  41. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  42. 2026-10-26 17:29 UTCEchelonGraph re-scored
  43. 2026-10-26 17:01 UTCENISA EUVD ID recordedEUVD-2026-109981 · Source: ENISA EUVD
  44. 2026-10-26 16:31 UTCEchelonGraph re-scoredFirst assessed: 10.0 CRITICAL
  45. 2026-10-26 16:30 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-115905?
CVE-2026-115905 is a critical-severity vulnerability; its CVE record was published on October 26, 2026. zip is a zip library for Rust that supports reading and writing simple ZIP files. Through 9.0.4, ZipArchive treats Central Directory File Header filenames as authoritative while ZipStreamReader extracts using Local File Header filenames without reconciling the duplicate metadata in…
When was the CVE record for CVE-2026-115905 published?
The CVE record for CVE-2026-115905 was published on October 26, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 2, 2026; the record at its source may have been updated since.
Is CVE-2026-115905 actively exploited?
CVE-2026-115905 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-115905?
CVE-2026-115905 has a CVSS base score of 10.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-115905?
A fix for CVE-2026-115905 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-115905 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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