CVE-2026-82880

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-31. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files, causing the crawler to exfiltrate file contents into the searchable index.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 31, 2026

Last Modified

August 31, 2026

Advisory Details (7)

Auto-updated Aug 31, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

YaCy Search Server through 1.941 XML External Entity Injection via Parsers | Advisories | VulnCheck

https://www.vulncheck.com/advisories/yacy-search-server-through-1.941-xml-external-entity-injection-via-parsers
generic

GitHub - yacy/yacy_search_server: Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance · GitHub

https://github.com/yacy/yacy_search_server
generic

yacy_search_server/source/net/yacy/document/parser/xml/opensearchdescriptionReader.java at Release_1.941 · yacy/yacy_search_server · GitHub

https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/xml/opensearchdescriptionReader.java#L119
generic

yacy_search_server/source/net/yacy/document/parser/mmParser.java at Release_1.941 · yacy/yacy_search_server · GitHub

https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/mmParser.java#L66
generic

yacy_search_server/source/net/yacy/document/parser/images/svgParser.java at Release_1.941 · yacy/yacy_search_server · GitHub

https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/images/svgParser.java#L72
github_commit

commit 3c3a307e8b7a (yacy/yacy_search_server)

Fix landed in yacy/yacy_search_server commit 3c3a307e8b7a — awaiting tagged release

https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44
generic

XXE Injection in SVG / FreeMind / OpenSearch Parsers via Crawl Pipeline · Issue #818 · yacy/yacy_search_server · GitHub

https://github.com/yacy/yacy_search_server/issues/818

Vendor Advisories for CVE-2026-82880(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 75× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 17:54 UTCGHSA enrichment
  3. 2026-09-20 05:36 UTCGHSA enrichment
  4. 2026-09-19 17:20 UTCEG score recompute
  5. 2026-09-19 17:20 UTCGHSA enrichment
  6. 2026-09-19 05:03 UTCEG score recompute
  7. 2026-09-19 05:03 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 16:46 UTCGHSA enrichment
  10. 2026-09-18 04:29 UTCEG score recompute
  11. 2026-09-18 04:29 UTCGHSA enrichment
  12. 2026-09-17 16:13 UTCGHSA enrichment
  13. 2026-09-17 03:57 UTCGHSA enrichment
  14. 2026-09-16 15:41 UTCEG score recompute
  15. 2026-09-16 15:41 UTCGHSA enrichment
  16. 2026-09-16 14:08 UTCEPSS rescore
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-16 03:24 UTCGHSA enrichment
  19. 2026-09-15 15:07 UTCEG score recompute
  20. 2026-09-15 15:07 UTCGHSA enrichment
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-15 02:50 UTCGHSA enrichment
  24. 2026-09-14 14:33 UTCGHSA enrichment
  25. 2026-09-14 02:16 UTCEG score recompute
Show 50 more
  1. 2026-09-14 02:16 UTCGHSA enrichment
  2. 2026-09-13 14:00 UTCGHSA enrichment
  3. 2026-09-13 01:44 UTCEG score recompute
  4. 2026-09-13 01:44 UTCGHSA enrichment
  5. 2026-09-12 13:27 UTCGHSA enrichment
  6. 2026-09-12 01:11 UTCGHSA enrichment
  7. 2026-09-11 12:54 UTCEG score recompute
  8. 2026-09-11 12:54 UTCGHSA enrichment
  9. 2026-09-11 00:38 UTCGHSA enrichment
  10. 2026-09-10 12:21 UTCEG score recompute
  11. 2026-09-10 12:21 UTCGHSA enrichment
  12. 2026-09-10 00:04 UTCGHSA enrichment
  13. 2026-09-09 11:47 UTCGHSA enrichment
  14. 2026-09-08 23:30 UTCEG score recompute
  15. 2026-09-08 23:30 UTCGHSA enrichment
  16. 2026-09-08 22:01 UTCEPSS rescore
  17. 2026-09-08 03:14 UTCEG score recompute
  18. 2026-09-08 03:14 UTCGHSA enrichment
  19. 2026-09-07 14:58 UTCGHSA enrichment
  20. 2026-09-07 00:38 UTCEG score recompute
  21. 2026-09-07 00:38 UTCGHSA enrichment
  22. 2026-09-06 13:48 UTCEPSS rescore
  23. 2026-09-06 12:21 UTCGHSA enrichment
  24. 2026-09-06 00:05 UTCEG score recompute
  25. 2026-09-06 00:05 UTCGHSA enrichment
  26. 2026-09-05 15:31 UTCEPSS rescore
  27. 2026-09-05 11:47 UTCGHSA enrichment
  28. 2026-09-04 23:28 UTCEG score recompute
  29. 2026-09-04 23:28 UTCGHSA enrichment
  30. 2026-09-04 11:04 UTCEG score recompute
  31. 2026-09-04 11:04 UTCGHSA enrichment
  32. 2026-09-04 05:07 UTCEPSS rescore
  33. 2026-09-03 22:46 UTCGHSA enrichment
  34. 2026-09-03 10:27 UTCGHSA enrichment
  35. 2026-09-02 22:10 UTCEG score recompute
  36. 2026-09-02 22:10 UTCGHSA enrichment
  37. 2026-09-02 14:12 UTCEPSS rescore
  38. 2026-09-02 09:53 UTCGHSA enrichment
  39. 2026-09-01 21:34 UTCEG score recompute
  40. 2026-09-01 21:34 UTCGHSA enrichment
  41. 2026-09-01 13:54 UTCEPSS rescore
  42. 2026-09-01 09:18 UTCGHSA enrichment
  43. 2026-08-31 21:01 UTCGHSA enrichment
  44. 2026-08-31 15:24 UTCEG score recompute
  45. 2026-08-31 15:23 UTCGHSA enrichment
  46. 2026-08-31 14:25 UTCEG score recompute
  47. 2026-08-31 14:25 UTCGHSA enrichment
  48. 2026-08-31 11:23 UTCEG score recompute
  49. 2026-08-31 11:02 UTCEG score recompute
  50. 2026-08-31 10:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82880?
CVE-2026-82880 is a high vulnerability published on August 31, 2026. YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files,…
When was CVE-2026-82880 disclosed?
CVE-2026-82880 was first published in the National Vulnerability Database on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82880 actively exploited?
CVE-2026-82880 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 72.4% of all scored CVEs.
What is the CVSS score of CVE-2026-82880?
CVE-2026-82880 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-82880?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82880, 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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