CVE-2026-59974

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.14.0, stanza.resources.common.unzip in stanza/resources/common.py passes downloaded model and resource archives to zipfile.ZipFile.extractall without validating member paths, and the vulnerable extraction path is reachable through stanza.download and stanza.install_corenlp. A malicious archive containing parent-directory traversal entries can write outside the intended model directory, allowing files writable by the Stanza process to be overwritten and potentially enabling code execution through modified shell configuration, SSH authorization data, Python packages, or executable scripts. This issue is fixed in version 1.14.0.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
51(Track*)
EG Risk 51/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v1.14.0 - Security fixes and Lemmatizer efficiency updates

Patch available: stanfordnlp/stanza v1.14.0

https://github.com/stanfordnlp/stanza/releases/tag/v1.14.0
github_commit Patch Available

commit a7085e75abdf (stanfordnlp/stanza)

Patch available: stanfordnlp/stanza v1.14.0 (contains commit a7085e75abdf)

https://github.com/stanfordnlp/stanza/commit/a7085e75abdf35f277754dda472bba4e6819bcbb
github Patch Available🟡 PoC Available

Zip Slip Path Traversal in Model/Resource Extraction · Advisory · stanfordnlp/stanza · GitHub

https://github.com/stanfordnlp/stanza/security/advisories/GHSA-2fwf-f686-7p34

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-24 21:31 UTCEG score recompute
  2. 2026-09-24 14:04 UTCEPSS rescore
  3. 2026-09-23 20:53 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-22 20:34 UTCEG score recompute
  6. 2026-09-22 08:23 UTCEG score recompute
  7. 2026-09-21 08:05 UTCEG score recompute
  8. 2026-09-20 20:16 UTCEPSS rescore
  9. 2026-09-19 19:34 UTCEG score recompute
  10. 2026-09-19 07:24 UTCEG score recompute
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 07:05 UTCEG score recompute
  13. 2026-09-17 19:31 UTCEPSS rescore
  14. 2026-09-16 18:24 UTCEG score recompute
  15. 2026-09-16 17:36 UTCEG score recompute
  16. 2026-09-16 16:22 UTCEG score recompute
  17. 2026-09-16 16:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59974?
CVE-2026-59974 is a high vulnerability published on September 16, 2026. Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.14.0, stanza.resources.common.unzip in stanza/resources/common.py passes downloaded model and resource archives to zipfile.ZipFile.extractall without validating…
When was CVE-2026-59974 disclosed?
CVE-2026-59974 was first published in the National Vulnerability Database on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59974 actively exploited?
CVE-2026-59974 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 68.1% of all scored CVEs.
What is the CVSS score of CVE-2026-59974?
CVE-2026-59974 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-59974?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59974, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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