CVE-2026-57074

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-16. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week

Also known asEUVD-2026-44966 (ENISA EUVD) · GHSA-xm8x-vw7j-573w (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
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: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

XML::Bare versions through 0.53 for Perl have an unbounded character lookahead.

The parserc_parse function attempts to check for multicharacter strings such as "" without checking that the offsets are within the buffer.

Truncated strings such as "

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

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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, and whom BOD 26-04 binds: 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.

The score's inputs: 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

July 16, 2026

Last Modified

October 24, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
Patch available. Sources: github_pr.
Web page

oss-security - CVE-2026-57074: XML::Bare versions through 0.53 for Perl have an unbounded character lookahead

http://www.openwall.com/lists/oss-security/2026/07/16/1
GitHub pull request

XML::Bare: bounds truncated fixed-advance lookahead (heap OOB read)

Upstream fix in progress (PR #1 · nanoscopic/perl-XML-Bare, state=open)

https://github.com/nanoscopic/perl-XML-Bare/pull/1

Vendor Advisories for CVE-2026-57074(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 rangeFix by version rangeDependents
libxml-bare-perl0.53-1, 0.53-2, 0.53-3, 0.53-4, 0.53-5
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libxml-bare-perl0.53-2, 0.53-3, 0.53-4, 0.53-5
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libxml-bare-perl0.53-4, 0.53-5
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libxml-bare-perl0.53-4
  • every version up to 0.53-5: fixed in 0.53-5
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 80× 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 897 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 797 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 02:35 UTCEG score recompute
  2. 2026-11-02 02:35 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  4. 2026-11-01 04:38 UTCEG score recompute
  5. 2026-11-01 04:38 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  7. 2026-10-31 06:41 UTCEG score recompute
  8. 2026-10-31 06:40 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  10. 2026-10-30 08:43 UTCEG score recompute
  11. 2026-10-30 08:43 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  13. 2026-10-29 10:46 UTCEG score recompute
  14. 2026-10-29 10:46 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  15. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  16. 2026-10-28 12:42 UTCEG score recompute
  17. 2026-10-28 12:42 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  19. 2026-10-27 14:43 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-26 16:42 UTCEG score recompute
  21. 2026-10-26 16:42 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  23. 2026-10-25 18:29 UTCEG score recompute
  24. 2026-10-25 18:29 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.6% · 50th percentile
Show 75 more
  1. 2026-10-25 14:17 UTCEG score recompute
  2. 2026-10-24 20:26 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-10-24 19:50 UTCEG score recompute
  4. 2026-10-24 19:50 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  5. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  6. 2026-10-23 21:53 UTCEG score recompute
  7. 2026-10-23 21:53 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  9. 2026-10-22 23:53 UTCEG score recompute
  10. 2026-10-22 23:52 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  12. 2026-10-22 01:49 UTCEG score recompute
  13. 2026-10-22 01:49 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  15. 2026-10-21 03:48 UTCEG score recompute
  16. 2026-10-21 03:48 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  17. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  18. 2026-10-20 05:30 UTCEG score recompute
  19. 2026-10-20 05:30 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  21. 2026-10-19 06:59 UTCEG score recompute
  22. 2026-10-19 06:59 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  23. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  24. 2026-10-18 08:58 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-18 03:29 UTCEG score recompute
  26. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  27. 2026-10-17 10:44 UTCEG score recompute
  28. 2026-10-17 10:44 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  29. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  30. 2026-10-16 12:20 UTCEG score recompute
  31. 2026-10-16 12:20 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  32. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  33. 2026-10-15 14:01 UTCEG score recompute
  34. 2026-10-15 14:01 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  35. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  36. 2026-10-14 08:50 UTCEG score recompute
  37. 2026-10-14 08:50 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  38. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  39. 2026-10-13 04:47 UTCEG score recompute
  40. 2026-10-13 04:46 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  41. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  42. 2026-10-12 15:54 UTCEG score recompute
  43. 2026-10-12 06:48 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  44. 2026-10-11 19:37 UTCEG score recompute
  45. 2026-10-11 16:53 UTCEG score recompute
  46. 2026-10-11 14:15 UTCEG score recompute
  47. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  48. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  49. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  50. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  51. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  52. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  53. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  54. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  55. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  56. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  57. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  58. 2026-10-01 15:53 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  59. 2026-10-01 11:23 UTCEG score recompute
  60. 2026-10-01 11:23 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  61. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  62. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  63. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  64. 2026-09-28 13:14 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  65. 2026-09-28 08:17 UTCEG score recompute
  66. 2026-09-28 08:17 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  67. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  68. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  69. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  70. 2026-09-24 13:17 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  71. 2026-09-24 08:29 UTCEG score recompute
  72. 2026-09-24 08:29 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  73. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  74. 2026-09-23 11:39 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1
  75. 2026-09-23 07:18 UTCGHSA enrichmentGHSA-xm8x-vw7j-573w · GitHub severity CRITICAL · GitHub CVSS 9.1

Frequently asked(5)

What is CVE-2026-57074?
CVE-2026-57074 is a critical-severity vulnerability; its CVE record was published on July 16, 2026. XML::Bare versions through 0.53 for Perl have an unbounded character lookahead. The parserc_parse function attempts to check for multicharacter strings such as "<![CDATA" or element terminators such as ">" without checking that the offsets are within the buffer. Truncated strings such as "<a/" can…
When was the CVE record for CVE-2026-57074 published?
The CVE record for CVE-2026-57074 was published on July 16, 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 October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-57074 actively exploited?
CVE-2026-57074 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57074?
CVE-2026-57074 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-57074?
A fix for CVE-2026-57074 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-57074 are linked in the Vendor Advisories panel on this page.

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