CVE-2026-76983

MEDIUMNVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-08-31. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.4Exploit: None knownExposed: 0

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

Improper neutralization of input during web page generation in Apache Wicket.

The tag is provided by org.apache.wicket.markup.html.form.AutoLabelTextResolver, which is registered by default in every WebApplication. The resolver writes the label it finds into the markup as it is, and reads no escaping setting at all, so markup in a label is rendered as markup.

When the label comes from the labelled component's label model, set through FormComponent#setLabel(IModel), it is written to the markup unescaped. An application is affected where the label of a form component holds data an attacker can influence. Wicket cannot determine where a model value comes from, so whether it reaches the page from a request or from storage is a property of the application.

There is no workaround. Unlike every other rendering path in Wicket, the resolver never consulted the escape-model-strings setting, so an application had no way to ask for the label to be escaped.

The body of a tag is markup by design and is not affected; it remains the supported way to place markup in a label.

This issue affects Apache Wicket: from 8.0.0 through 8.18.0, from 9.0.0 through 9.23.0, from 10.0.0 through 10.10.0. Older, unsupported releases from 1.5.0 onwards are also affected. Users are recommended to upgrade to version 8.19.0, 9.24.0 or 10.11.0, which fix the issue.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity54% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 31, 2026
No patch confirmed yet.
generic
https://lists.apache.org/thread/lfc9s9qkgxhm8ffscp9b7gjfgj47g25h

Vendor Advisories for CVE-2026-76983(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 19× in last 7d / 77× 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 15:22 UTCEG score recompute
  2. 2026-09-24 15:22 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 17:17 UTCGHSA enrichment
  6. 2026-09-22 19:20 UTCEG score recompute
  7. 2026-09-22 19:20 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-21 21:18 UTCEG score recompute
  10. 2026-09-21 21:18 UTCGHSA enrichment
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-20 23:21 UTCEG score recompute
  13. 2026-09-20 23:21 UTCGHSA enrichment
  14. 2026-09-20 20:16 UTCEPSS rescore
  15. 2026-09-20 01:07 UTCEG score recompute
  16. 2026-09-20 01:07 UTCGHSA enrichment
  17. 2026-09-19 03:11 UTCEG score recompute
  18. 2026-09-19 03:10 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 05:14 UTCEG score recompute
  21. 2026-09-18 05:14 UTCGHSA enrichment
  22. 2026-09-17 07:17 UTCEG score recompute
  23. 2026-09-17 07:17 UTCGHSA enrichment
  24. 2026-09-16 14:08 UTCEPSS rescore
  25. 2026-09-16 09:20 UTCEG score recompute
Show 52 more
  1. 2026-09-16 09:20 UTCGHSA enrichment
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-15 11:23 UTCEG score recompute
  4. 2026-09-15 11:23 UTCGHSA enrichment
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-14 13:27 UTCEG score recompute
  7. 2026-09-14 13:27 UTCGHSA enrichment
  8. 2026-09-13 15:30 UTCGHSA enrichment
  9. 2026-09-12 17:34 UTCEG score recompute
  10. 2026-09-12 17:34 UTCGHSA enrichment
  11. 2026-09-12 15:02 UTCEPSS rescore
  12. 2026-09-11 19:37 UTCEG score recompute
  13. 2026-09-11 19:37 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-10 21:40 UTCEG score recompute
  16. 2026-09-10 21:40 UTCGHSA enrichment
  17. 2026-09-10 09:35 UTCEPSS rescore
  18. 2026-09-09 23:44 UTCGHSA enrichment
  19. 2026-09-09 01:47 UTCEG score recompute
  20. 2026-09-09 01:47 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 03:50 UTCEG score recompute
  23. 2026-09-08 03:50 UTCGHSA enrichment
  24. 2026-09-07 05:54 UTCEG score recompute
  25. 2026-09-07 05:54 UTCGHSA enrichment
  26. 2026-09-06 13:48 UTCEPSS rescore
  27. 2026-09-06 07:58 UTCEG score recompute
  28. 2026-09-06 07:58 UTCGHSA enrichment
  29. 2026-09-05 10:01 UTCEG score recompute
  30. 2026-09-05 10:01 UTCGHSA enrichment
  31. 2026-09-04 12:04 UTCEG score recompute
  32. 2026-09-04 12:04 UTCGHSA enrichment
  33. 2026-09-04 05:07 UTCEPSS rescore
  34. 2026-09-03 14:07 UTCGHSA enrichment
  35. 2026-09-02 16:06 UTCEG score recompute
  36. 2026-09-02 16:06 UTCGHSA enrichment
  37. 2026-09-02 14:12 UTCEPSS rescore
  38. 2026-09-01 18:09 UTCEG score recompute▲ 0.30
  39. 2026-09-01 18:09 UTCGHSA enrichment
  40. 2026-09-01 18:09 UTCNVD updateCVSS v3 → 5.4
  41. 2026-09-01 17:05 UTCEG score recompute
  42. 2026-09-01 17:05 UTCGHSA enrichment
  43. 2026-09-01 13:54 UTCEPSS rescore
  44. 2026-08-31 18:52 UTCGHSA enrichment
  45. 2026-08-31 15:23 UTCEG score recompute
  46. 2026-08-31 15:23 UTCGHSA enrichment
  47. 2026-08-31 14:25 UTCEG score recompute
  48. 2026-08-31 14:25 UTCGHSA enrichment
  49. 2026-08-31 13:25 UTCGHSA enrichment
  50. 2026-08-31 12:23 UTCEG score recompute
  51. 2026-08-31 12:05 UTCEG score recompute
  52. 2026-08-31 12:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76983?
CVE-2026-76983 is a medium vulnerability published on August 31, 2026. Improper neutralization of input during web page generation in Apache Wicket. The <wicket:label> tag is provided by org.apache.wicket.markup.html.form.AutoLabelTextResolver, which is registered by default in every WebApplication. The resolver writes the label it finds into the markup as it is, and…
When was CVE-2026-76983 disclosed?
CVE-2026-76983 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76983 actively exploited?
CVE-2026-76983 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 59.5% of all scored CVEs.
What is the CVSS score of CVE-2026-76983?
CVE-2026-76983 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-76983?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76983, 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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