CVE-2026-71498

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (6th percentile of EPSS-scored CVEs). 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, secondary
Elevated
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final, incomplete code point. This could result in an out-of-bounds read and potential disclosure of adjacent memory contents. This issue is fixed in version 1.26.1.

CVSS v3
5.1
EG Score
5.1MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

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
Severity51% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 6, 2026

Last Modified

September 10, 2026

Advisory Details (3)

Auto-updated Aug 6, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Out-of-bounds heap read in `replace`/`split` via a `Buffer` ending in a truncated multi-byte UTF-8 character → adjacent heap memory disclosed to JavaScript · Advisory · uhop/node-re2 · GitHub

https://github.com/uhop/node-re2/security/advisories/GHSA-j4r3-hg7j-8chg
generic

Possible heap buffer over-read when a `Buffer` subject/pattern ends in a truncated multi-byte UTF-8 lead · Issue #272 · uhop/node-re2 · GitHub

https://github.com/uhop/node-re2/issues/272
github_commit

commit 9d72042a6a0d (uhop/node-re2)

Fix landed in uhop/node-re2 commit 9d72042a6a0d — awaiting tagged release

https://github.com/uhop/node-re2/commit/9d72042a6a0da5bc523908b04808ea0e23867cc4

Vendor Advisories for CVE-2026-71498(1)

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

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
node-re21.15.9+~cs1.8.18-1 ... 1.25.0+~cs1.6.0-2 (21 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-re21.18.0+~cs2.13.8-1 ... 1.26.1+~cs1.8.0-1 (12 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-re21.21.4+~cs2.13.13-2 ... 1.26.1+~cs1.8.0-1 (7 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-re21.21.4+~cs2.13.13-2, 1.22.1+~cs1.3.5-1, 1.23.3+~cs1.3.5-1, 1.25.0+~cs1.6.0-1, 1.25.0+~cs1.6.0-2
  • every version up to 1.26.1+~cs1.7.0-1: fixed in 1.26.1+~cs1.7.0-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
re2—
  • every version up to 1.26.1: fixed in 1.26.1
—

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-71498?
CVE-2026-71498 is a medium vulnerability published on August 6, 2026. node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final,…
When was CVE-2026-71498 disclosed?
CVE-2026-71498 was first published on August 6, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71498 actively exploited?
CVE-2026-71498 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71498?
CVE-2026-71498 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71498?
A fix for CVE-2026-71498 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71498 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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