CVE-2026-45756

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.6% (49th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match() and search() filter patterns directly into preg_match() without a length cap, i-regexp restriction, or bounded backtracking, allowing catastrophic-backtracking expressions to pin worker CPU and cause denial of service. This issue is fixed in versions 7.4.12 and 8.0.12.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 28, 2026

Last Modified

July 21, 2026

Advisory Details (4)

Auto-updated Jul 14, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

JsonPath Evaluates Attacker-Controlled Regular Expressions in match()/search() Without Limits: ReDoS · Advisory · symfony/symfony · GitHub

https://github.com/symfony/symfony/security/advisories/GHSA-8v8v-g73j-492j
GitHub release Patch Available

v8.0.12

Patch available: symfony/symfony v8.0.12

https://github.com/symfony/symfony/releases/tag/v8.0.12
GitHub release Patch Available

v7.4.12

Patch available: symfony/symfony v7.4.12

https://github.com/symfony/symfony/releases/tag/v7.4.12
GitHub commit Patch Available

commit 1ac2d47418ec (symfony/symfony)

Patch available: symfony/symfony v7.4.12 (contains commit 1ac2d47418ec)

https://github.com/symfony/symfony/commit/1ac2d47418ec23066112db1e6ca35be6fe123d14

Vendor Advisories for CVE-2026-45756(1)

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

Affected Packages

(3 across 2 ecosystems)
Packagist(2)
PackageVulnerable rangeFix by version rangeDependents
symfony/json-pathv8.0.0, v8.0.1, v8.0.3, v8.0.4, v8.0.8
  • 7.3.0 up to 7.4.12: fixed in 7.4.12
  • 8.0.0 up to 8.0.12: fixed in 8.0.12
—
symfony/symfonyv8.0.0 ... v8.0.9 (12 versions)
  • 7.3.0 up to 7.4.12: fixed in 7.4.12
  • 8.0.0 up to 8.0.12: fixed in 8.0.12
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
symfony6.4.21+dfsg-2 ... 7.4.9+dfsg-1 (52 versions)
  • every version up to 7.4.12+dfsg-1: fixed in 7.4.12+dfsg-1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 30× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 122 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 22 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  3. 2026-10-18 03:37 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  5. 2026-10-17 13:35 UTCEG score recompute
  6. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  7. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  8. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-12 16:04 UTCEG score recompute
  12. 2026-10-11 19:46 UTCEG score recompute
  13. 2026-10-11 17:00 UTCEG score recompute
  14. 2026-10-11 14:26 UTCEG score recompute
  15. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  23. 2026-10-03 15:18 UTCOSV refresh
  24. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 48th percentile
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  3. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  6. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  7. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-09-14 06:40 UTCEG score recompute
  11. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-09-13 02:09 UTCOSV refresh
  13. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  18. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  19. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  21. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  24. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  26. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  27. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  28. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  29. 2026-08-25 04:40 UTCEG score recompute
  30. 2026-08-23 14:28 UTCEG score recompute
  31. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  32. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  33. 2026-08-21 15:25 UTCEG score recompute
  34. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  35. 2026-08-20 10:45 UTCEG score recompute
  36. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  37. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  38. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  39. 2026-08-16 15:09 UTCEG score recompute
  40. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  41. 2026-08-16 02:33 UTCEG score recompute
  42. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  43. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  44. 2026-08-14 00:57 UTCEG score recompute
  45. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  46. 2026-08-12 22:53 UTCEG score recompute
  47. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  48. 2026-08-11 23:32 UTCEG score recompute
  49. 2026-08-11 00:05 UTCEG score recompute
  50. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  51. 2026-08-09 17:17 UTCEG score recompute
  52. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  53. 2026-08-08 18:19 UTCEG score recompute
  54. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  55. 2026-08-07 18:46 UTCEG score recompute
  56. 2026-08-06 19:46 UTCEG score recompute
  57. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  58. 2026-08-05 20:47 UTCEG score recompute
  59. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  60. 2026-08-04 23:40 UTCEG score recompute
  61. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  62. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  63. 2026-08-03 16:10 UTCEG score recompute
  64. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  65. 2026-08-02 13:27 UTCEG score recompute
  66. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  67. 2026-08-01 14:27 UTCEG score recompute
  68. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  69. 2026-07-31 06:19 UTCEG score recompute
  70. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  71. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  72. 2026-07-29 12:31 UTCEG score recompute
  73. 2026-07-28 15:36 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  74. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  75. 2026-07-27 09:37 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-45756?
CVE-2026-45756 is a high-severity vulnerability; its CVE record was published on May 28, 2026. Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match() and search() filter patterns directly into preg_match() without a length cap, i-regexp restriction,…
When was the CVE record for CVE-2026-45756 published?
The CVE record for CVE-2026-45756 was published on May 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 21, 2026; the record at its source may have been updated since.
Is CVE-2026-45756 actively exploited?
CVE-2026-45756 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45756?
CVE-2026-45756 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-45756?
A fix for CVE-2026-45756 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-45756 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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