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
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 2026-10-19). 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

July 16, 2026

Last Modified

July 17, 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 21× in last 7d / 61× 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 855 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 755 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

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 July 17, 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 (49th 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.

Dependency Blast Radius

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