CVE-2026-10725

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-06. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
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: None knownExposed: 0

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

Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb.

Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb").

The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded.

MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode. It is absent from the decoder and from the :limits export tag.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

June 6, 2026

Last Modified

July 23, 2026

Advisory Details (5)

Auto-updated Jun 9, 2026
No patch confirmed yet.
generic
https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r2.patch
generic
https://github.com/vlet/p5-Protocol-HTTP2/commit/822bf22224adbd662e8d0b865eeacb2b294d16cd.patch
generic

Client Challenge

https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414
generic

lib/Protocol/HTTP2/HeaderCompression.pm - metacpan.org

https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133
generic

Changes - metacpan.org

https://metacpan.org/release/CRUX/Protocol-HTTP2-1.13/changes

Vendor Advisories for CVE-2026-10725(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libprotocol-http2-perl1.10-1 ... 1.13-1 (7 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libprotocol-http2-perl1.10-2 ... 1.13-1 (6 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libprotocol-http2-perl1.11-1, 1.12-1, 1.12-2, 1.13-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libprotocol-http2-perl1.11-1, 1.12-11.12-2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 94× 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.

Showing the most recent 100 of 220 total refreshes for this CVE.

  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-25 01:43 UTCEG score recompute
  3. 2026-08-25 01:43 UTCGHSA enrichment
  4. 2026-08-24 00:41 UTCGHSA enrichment
  5. 2026-08-23 12:21 UTCEG score recompute
  6. 2026-08-23 12:21 UTCGHSA enrichment
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-22 01:00 UTCEG score recompute
  9. 2026-08-22 01:00 UTCGHSA enrichment
  10. 2026-08-21 23:48 UTCEPSS rescore
  11. 2026-08-21 12:44 UTCEG score recompute
  12. 2026-08-21 12:44 UTCGHSA enrichment
  13. 2026-08-20 22:55 UTCEPSS rescore
  14. 2026-08-20 21:49 UTCGHSA enrichment
  15. 2026-08-20 09:36 UTCEG score recompute
  16. 2026-08-20 09:36 UTCGHSA enrichment
  17. 2026-08-19 17:03 UTCEPSS rescore
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 14:58 UTCEG score recompute
  20. 2026-08-17 14:58 UTCGHSA enrichment
  21. 2026-08-17 02:46 UTCEG score recompute
  22. 2026-08-17 02:46 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 14:33 UTCEG score recompute
  25. 2026-08-16 14:33 UTCGHSA enrichment
Show 75 more
  1. 2026-08-16 02:14 UTCEPSS rescore
  2. 2026-08-16 01:32 UTCGHSA enrichment
  3. 2026-08-15 13:16 UTCEG score recompute
  4. 2026-08-15 13:16 UTCGHSA enrichment
  5. 2026-08-15 01:30 UTCEPSS rescore
  6. 2026-08-15 01:01 UTCGHSA enrichment
  7. 2026-08-14 12:48 UTCGHSA enrichment
  8. 2026-08-14 00:36 UTCEG score recompute
  9. 2026-08-14 00:36 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 12:22 UTCGHSA enrichment
  12. 2026-08-12 23:22 UTCEG score recompute
  13. 2026-08-12 23:22 UTCGHSA enrichment
  14. 2026-08-12 13:50 UTCEPSS rescore
  15. 2026-08-12 11:10 UTCGHSA enrichment
  16. 2026-08-11 22:51 UTCEG score recompute
  17. 2026-08-11 22:51 UTCGHSA enrichment
  18. 2026-08-11 13:42 UTCEPSS rescore
  19. 2026-08-11 10:39 UTCEG score recompute
  20. 2026-08-11 10:39 UTCGHSA enrichment
  21. 2026-08-10 23:59 UTCEPSS rescore
  22. 2026-08-10 22:27 UTCGHSA enrichment
  23. 2026-08-10 10:10 UTCGHSA enrichment
  24. 2026-08-09 21:57 UTCEG score recompute
  25. 2026-08-09 21:57 UTCGHSA enrichment
  26. 2026-08-09 13:46 UTCEPSS rescore
  27. 2026-08-09 09:45 UTCGHSA enrichment
  28. 2026-08-08 21:33 UTCEG score recompute
  29. 2026-08-08 21:33 UTCGHSA enrichment
  30. 2026-08-08 16:37 UTCEPSS rescore
  31. 2026-08-08 09:20 UTCGHSA enrichment
  32. 2026-08-07 21:08 UTCEG score recompute
  33. 2026-08-07 21:08 UTCGHSA enrichment
  34. 2026-08-07 08:55 UTCGHSA enrichment
  35. 2026-08-06 20:43 UTCEG score recompute
  36. 2026-08-06 20:43 UTCGHSA enrichment
  37. 2026-08-06 13:46 UTCEPSS rescore
  38. 2026-08-06 08:31 UTCGHSA enrichment
  39. 2026-08-05 20:18 UTCEG score recompute
  40. 2026-08-05 20:18 UTCGHSA enrichment
  41. 2026-08-05 19:17 UTCEPSS rescore
  42. 2026-08-04 17:12 UTCEG score recompute
  43. 2026-08-04 17:12 UTCGHSA enrichment
  44. 2026-08-04 15:09 UTCEPSS rescore
  45. 2026-08-04 10:38 UTCEPSS rescore
  46. 2026-08-04 03:36 UTCGHSA enrichment
  47. 2026-08-03 15:24 UTCEG score recompute
  48. 2026-08-03 15:24 UTCGHSA enrichment
  49. 2026-08-03 10:35 UTCEPSS rescore
  50. 2026-08-02 23:41 UTCGHSA enrichment
  51. 2026-08-02 11:28 UTCEG score recompute
  52. 2026-08-02 11:28 UTCGHSA enrichment
  53. 2026-08-02 02:26 UTCEPSS rescore
  54. 2026-08-01 23:16 UTCGHSA enrichment
  55. 2026-08-01 11:04 UTCEG score recompute
  56. 2026-08-01 11:03 UTCGHSA enrichment
  57. 2026-08-01 04:15 UTCEPSS rescore
  58. 2026-07-31 18:07 UTCGHSA enrichment
  59. 2026-07-31 05:01 UTCEG score recompute
  60. 2026-07-31 05:01 UTCGHSA enrichment
  61. 2026-07-30 16:27 UTCEPSS rescore
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-29 09:24 UTCEG score recompute
  64. 2026-07-29 09:24 UTCGHSA enrichment
  65. 2026-07-28 15:36 UTCEPSS rescore
  66. 2026-07-28 02:59 UTCEG score recompute
  67. 2026-07-28 02:59 UTCGHSA enrichment
  68. 2026-07-27 14:13 UTCEPSS rescore
  69. 2026-07-27 10:04 UTCGHSA enrichment
  70. 2026-07-26 21:51 UTCEG score recompute
  71. 2026-07-26 21:51 UTCGHSA enrichment
  72. 2026-07-26 14:54 UTCEPSS rescore
  73. 2026-07-26 14:54 UTCEPSS rescore
  74. 2026-07-26 07:17 UTCEG score recompute
  75. 2026-07-26 07:17 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-10725?
CVE-2026-10725 is a high vulnerability published on June 6, 2026. Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb"). The headersdecode method materialises a full key+value copy per…
When was CVE-2026-10725 disclosed?
CVE-2026-10725 was first published in the National Vulnerability Database on June 6, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10725 actively exploited?
CVE-2026-10725 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 65.8% of all scored CVEs.
What is the CVSS score of CVE-2026-10725?
CVE-2026-10725 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-10725?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10725, 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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