CVE-2026-43644

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-05-14. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

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

podinfo through 6.11.2 contains a reflected cross-site scripting vulnerability in the /echo and /api/echo endpoints where the echoHandler writes request body content directly to the response without setting explicit Content-Type or X-Content-Type-Options headers. Attackers can craft cross-origin HTML pages with auto-submitting forms containing script payloads in the request body, which are served as text/html due to Go's content type detection, allowing the reflected script to execute in the podinfo origin context when victims visit the attacker's page.

CVSS v3
5.4
EG Score
5.4(medium)
EPSS
9.3%
KEV
Not listed

Published

May 14, 2026

Last Modified

June 1, 2026

Advisory Details (3)

Auto-updated Jun 16, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

podinfo 6.11.2 Reflected XSS via /echo Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/podinfo-reflected-xss-via-echo-endpoint
generic

Security issue · Issue #474 · stefanprodan/podinfo · GitHub

https://github.com/stefanprodan/podinfo/issues/474
generic🟡 PoC Available

Security-Advisories/CVE-2026-43644/cve-2026-43644.md at main · Niccolo10/Security-Advisories · GitHub

https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-43644/cve-2026-43644.md

Vendor Advisories for CVE-2026-43644(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/stefanprodan/podinfo—1.8.1-0.20260519111337-cbebb20fd485—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 43× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:16 UTCEPSS rescore
  5. 2026-07-07 13:46 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-01 15:07 UTCEPSS rescore
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-29 21:57 UTCEG score recompute
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-27 22:52 UTCEG score recompute
  17. 2026-06-27 03:08 UTCEPSS rescore
  18. 2026-06-26 20:24 UTCEG score recompute
  19. 2026-06-25 19:22 UTCEG score recompute
  20. 2026-06-25 13:49 UTCEPSS rescore
  21. 2026-06-25 13:49 UTCEPSS rescore
  22. 2026-06-24 14:05 UTCEPSS rescore
  23. 2026-06-23 21:33 UTCEPSS rescore
  24. 2026-06-22 14:25 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
Show 65 more
  1. 2026-06-21 14:56 UTCEPSS rescore
  2. 2026-06-21 14:56 UTCEPSS rescore
  3. 2026-06-21 01:59 UTCEPSS rescore
  4. 2026-06-19 19:25 UTCEPSS rescore
  5. 2026-06-18 17:52 UTCEPSS rescore
  6. 2026-06-18 17:52 UTCEPSS rescore
  7. 2026-06-17 23:47 UTCEG score recompute
  8. 2026-06-17 17:53 UTCEPSS rescore
  9. 2026-06-16 23:33 UTCEG score recompute
  10. 2026-06-16 17:52 UTCEPSS rescore
  11. 2026-06-16 00:07 UTCEG score recompute
  12. 2026-06-15 17:49 UTCEPSS rescore
  13. 2026-06-14 23:02 UTCEG score recompute
  14. 2026-06-13 23:34 UTCEG score recompute
  15. 2026-06-13 23:00 UTCEPSS rescore
  16. 2026-06-12 23:15 UTCEG score recompute
  17. 2026-06-12 23:12 UTCEPSS rescore
  18. 2026-06-12 23:12 UTCEPSS rescore
  19. 2026-06-11 23:48 UTCEG score recompute
  20. 2026-06-11 14:00 UTCEPSS rescore
  21. 2026-06-11 00:22 UTCEG score recompute
  22. 2026-06-10 22:18 UTCEPSS rescore
  23. 2026-06-10 13:22 UTCEPSS rescore
  24. 2026-06-10 13:22 UTCEPSS rescore
  25. 2026-06-10 00:56 UTCEG score recompute
  26. 2026-06-09 01:30 UTCEG score recompute
  27. 2026-06-08 14:17 UTCEPSS rescore
  28. 2026-06-08 14:17 UTCEPSS rescore
  29. 2026-06-08 01:57 UTCEG score recompute
  30. 2026-06-07 15:25 UTCEPSS rescore
  31. 2026-06-07 15:25 UTCEPSS rescore
  32. 2026-06-07 02:31 UTCEG score recompute
  33. 2026-06-06 13:47 UTCEPSS rescore
  34. 2026-06-06 13:47 UTCEPSS rescore
  35. 2026-06-06 03:04 UTCEG score recompute
  36. 2026-06-05 22:47 UTCEPSS rescore
  37. 2026-06-05 06:10 UTCEPSS rescore
  38. 2026-06-05 06:10 UTCEPSS rescore
  39. 2026-06-05 03:37 UTCEG score recompute
  40. 2026-06-04 13:12 UTCEPSS rescore
  41. 2026-06-04 13:12 UTCEPSS rescore
  42. 2026-06-04 04:11 UTCEG score recompute
  43. 2026-06-03 04:44 UTCEG score recompute
  44. 2026-06-02 20:13 UTCEPSS rescore
  45. 2026-06-02 05:18 UTCEG score recompute
  46. 2026-06-01 13:52 UTCEPSS rescore
  47. 2026-06-01 13:52 UTCEPSS rescore
  48. 2026-06-01 05:52 UTCEG score recompute
  49. 2026-05-31 22:30 UTCEPSS rescore
  50. 2026-05-31 22:30 UTCEPSS rescore
  51. 2026-05-31 00:16 UTCEPSS rescore
  52. 2026-05-31 00:16 UTCEPSS rescore
  53. 2026-05-29 13:44 UTCEPSS rescore
  54. 2026-05-29 13:44 UTCEPSS rescore
  55. 2026-05-28 13:44 UTCEPSS rescore
  56. 2026-05-28 13:44 UTCEPSS rescore
  57. 2026-05-27 13:40 UTCEPSS rescore
  58. 2026-05-27 13:40 UTCEPSS rescore
  59. 2026-05-26 13:44 UTCEPSS rescore
  60. 2026-05-26 07:18 UTCEPSS rescore
  61. 2026-05-21 22:43 UTCEPSS rescore
  62. 2026-05-20 22:38 UTCEPSS rescore
  63. 2026-05-20 12:18 UTCEG score recompute
  64. 2026-05-20 12:18 UTCGHSA enrichment
  65. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43644?
CVE-2026-43644 is a medium vulnerability published on May 14, 2026. podinfo through 6.11.2 contains a reflected cross-site scripting vulnerability in the /echo and /api/echo endpoints where the echoHandler writes request body content directly to the response without setting explicit Content-Type or X-Content-Type-Options headers. Attackers can craft cross-origin…
When was CVE-2026-43644 disclosed?
CVE-2026-43644 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43644 actively exploited?
CVE-2026-43644 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43644?
CVE-2026-43644 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-43644?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43644, 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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