CVE-2026-57235

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 75% 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, nvd
Trending — 3 sources updated this week
8.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.2Exploit: NoneExposed: 0

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

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::NodeSet#[] (and its alias #slice) checked the requested index against the node set's bounds using a 32-bit-truncated copy of the index. A large negative index could pass the check and then be used at full width, reading outside the node set's storage. On CRuby this is an out-of-bounds read that typically crashes the process; on JRuby it is not memory-unsafe but returns an incorrect node. This vulnerability is fixed in 1.19.4.

CVSS v3
8.2
EG Score
8.2(medium)
EPSS
25.1%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 25, 2026
Patch available. Sources: github.
github Patch Available

Possible Out-of-Bounds Read in `Nokogiri::XML::NodeSet#[]` · Advisory · sparklemotion/nokogiri · GitHub

https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-5prr-v3j2-97mh

Vendor Advisories for CVE-2026-57235(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 40× in last 7d / 56× 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. 2026-07-07 06:11 UTCEG score recompute
  2. 2026-07-07 06:11 UTCVendor advisory
  3. 2026-07-06 19:10 UTCEG score recompute
  4. 2026-07-06 19:10 UTCVendor advisory
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 08:10 UTCEG score recompute
  8. 2026-07-06 08:10 UTCVendor advisory
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 21:11 UTCEG score recompute
  12. 2026-07-05 21:11 UTCVendor advisory
  13. 2026-07-05 10:14 UTCEG score recompute
  14. 2026-07-05 10:13 UTCVendor advisory
  15. 2026-07-05 02:31 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 23:16 UTCEG score recompute
  18. 2026-07-04 23:16 UTCVendor advisory
  19. 2026-07-04 12:19 UTCEG score recompute
  20. 2026-07-04 12:19 UTCVendor advisory
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-04 01:22 UTCEG score recompute
  24. 2026-07-04 01:22 UTCVendor advisory
  25. 2026-07-03 14:25 UTCEG score recompute
Show 31 more
  1. 2026-07-03 14:25 UTCVendor advisory
  2. 2026-07-03 03:28 UTCEG score recompute
  3. 2026-07-03 03:28 UTCVendor advisory
  4. 2026-07-02 16:31 UTCEG score recompute
  5. 2026-07-02 16:31 UTCVendor advisory
  6. 2026-07-02 05:33 UTCEG score recompute
  7. 2026-07-02 05:33 UTCVendor advisory
  8. 2026-07-01 18:36 UTCEG score recompute
  9. 2026-07-01 18:36 UTCVendor advisory
  10. 2026-07-01 15:07 UTCEPSS rescore
  11. 2026-07-01 07:39 UTCEG score recompute
  12. 2026-07-01 07:39 UTCVendor advisory
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-30 20:42 UTCEG score recompute
  15. 2026-06-30 09:43 UTCEG score recompute
  16. 2026-06-29 22:46 UTCEG score recompute
  17. 2026-06-29 14:06 UTCEPSS rescore
  18. 2026-06-29 11:48 UTCEG score recompute
  19. 2026-06-29 00:51 UTCEG score recompute
  20. 2026-06-28 14:07 UTCEPSS rescore
  21. 2026-06-28 13:54 UTCEG score recompute
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-28 04:56 UTCEPSS rescore
  24. 2026-06-28 02:56 UTCEG score recompute
  25. 2026-06-27 15:59 UTCEG score recompute
  26. 2026-06-27 05:02 UTCEG score recompute
  27. 2026-06-27 03:08 UTCEPSS rescore
  28. 2026-06-26 18:03 UTCEG score recompute▲ 1.90
  29. 2026-06-26 13:40 UTCNVD updateCVSS v3 → 8.2 · severity → HIGH
  30. 2026-06-25 15:48 UTCEG score recompute
  31. 2026-06-25 15:47 UTCNVD updatefirst tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-57235?
CVE-2026-57235 is a high vulnerability published on June 25, 2026. Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::NodeSet#[] (and its alias #slice) checked the requested index against the node set's bounds using a 32-bit-truncated copy of the index. A large negative index could pass the check and…
When was CVE-2026-57235 disclosed?
CVE-2026-57235 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57235 actively exploited?
CVE-2026-57235 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57235?
CVE-2026-57235 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-57235?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57235, 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.

Dependency Blast Radius

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